seamus dubhghaill

Promoting Irish Culture and History from Little Rock, Arkansas, USA


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The Battle of Ballineen and Enniskean

On the stormy Saturday morning of November 4, 1922, a major engagement takes place in the West Cork villages of Ballineen and Enniskean, marking one of the last significant clashes of the Irish Civil War.

The attack is led by General Tom Barry, who had recently escaped internment in Kildare, alongside Irish Republican Army (IRA) figures M. Donovan, P. Kearney, and M. Crowley. The Free State (Provisional Government) had established military posts in both villages, with 38 soldiers and two officers at Ballineen under Captain Ben Byrne, and 25 soldiers and one officer at Enniskean under Captain Larry Finnegan. Both captains served with Michael Collins’s “Squad” during the Irish War of Independence.

The IRA force, estimated at two hundred or more, targets the O’Donovan’s Hotel in Ballineen, taking the ground floor and besieging the Free State troops on the upper floor with a Lewis gun. Byrne attempts to fight from a back window but is overpowered and taken prisoner. IRA fighters also move to Enniskean, where house-to-house fighting ensues.

Private Thomas Gallagher (18) of the Free State Army Medical Corps is fatally shot in Ballineen while assisting Private Michael Woods, who also dies. Private Andrew Hogan (24), veteran of World War I and the Irish War of Independence, is wounded in the thigh and later dies from sepsis. In Enniskean, Private Andrew Hogan is wounded while others are captured or killed.

Five Free State soldiers are wounded (two later die), including Captain Byrne. The IRA suffers three dead, several wounded, and some captured.

The IRA succeeds in overrunning the Ballineen position and inflicting serious casualties, but expected reinforcements lead them to withdraw. Free State troops retake control of both villages.

This day-long battle is notable for its stormy conditions, the mixed veteran and young recruits on both sides, and the personal histories of many involved. It reflects the Irish Civil War’s shift from large-scale conventional battles to guerrilla-style engagements in rural areas.

Today, the event is remembered as a forgotten but pivotal moment in the final months of the Irish Civil War, symbolizing the struggle between the Free State and anti-Treaty forces in the West Cork region.

(Pictured: Ballineen, County Cork, in 1920)


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Death of Andrew Alexander Watt, Landowner & Businessman

Andrew Alexander Watt, JP, DL, Irish landowner and businessman, dies on October 11, 1928, at Easton Hall in Lincolnshire, England. He has a net worth of over £900,000 at the time of his death, worth £51.8 million in 2016. The Watt family are, by origin, an Ulster Scots family from Ramelton in County Donegal.

Watt is born on November 4, 1853, to Samuel Watt of Thornhill House, then on the northern outskirts of Derry, and his wife Jane Newman, daughter of Captain Robert Newman, R.N.. He is educated at Foyle College in Derry and then at home by tutors. The Watt family are Ulster Scots gentry who had arrived at Claragh, on the outskirts of Ramelton in the north of County Donegal, during the Plantation of Ulster.

Watt is the owner of Watt’s Distillery, located on Abbey Street in the Bogside in Derry, one of the largest distilleries in Ireland, and the creator of many whiskies, including the famous Tyrconnell, which he names after his racehorse that wins the National Produce Stakes against the odds of 100 to 1. The horse itself is named after Tyrconnell (Irish: Tír Chonaill), the ancient túath or Gaelic kingdom that once covered most of what is now County Donegal in the west of Ulster.

During industrial unrest in 1921, brought about by World War I, prohibition in the United States, and the Irish War of Independence, Watt’s workers at the distillery in Derry are made redundant after challenging his authority. He is said to have stood on a barrel outside the gates to his distillery in the Bogside, while the workers are on strike, and shouted, “Well men, I shall put it to you like this …what is it to be? Will you open the gates?” To which the workers retorted, “The gates stay shut!” This prompts Watt to reply, “Shut they are, and shut they shall remain!” He subsequently closes down Watt’s Distillery, at great economic expense to Derry and neighbouring areas of County Donegal.

On October 7, 1875, Watt marries Violet Flora de Burgh, daughter of George de Burgh and Constance Matthews, with whom he had four sons and two daughters.

Watt serves as High Sheriff of County Londonderry from 1886 to 1887. He is a member of Boodle’s. He dies at Easton Hall in Lincolnshire, where he lives in England after he left Ireland. Easton Hall is later demolished in 1951.


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Roger Casement Meets With Franz von Papen in Washington, D.C.

On September 13, 1914, Irish nationalist Sir Roger Casement meets with Franz von Papen, a German diplomat and future Chancellor of Germany, in Washington, D.C., as part of his efforts to secure foreign support for Ireland’s independence from Britain.

Casement, a founder of the Irish National Volunteers and a former British diplomat, has traveled to the United States to seek American backing for his republican cause. When that proves unsuccessful, he turns to Germany, hoping to enlist Irish soldiers in the British Army to fight alongside the Germans in World War I. His plan is to raise an “Irish Brigade” composed of Irish prisoners of war captured in Belgium and France, who are estimated to number 35,000–40,000.

The September 13 meeting in Washington is one of several contacts Casement makes with German officials, including Papen, to present his proposal. He argues that an Irish Brigade could bolster the German war effort while advancing Ireland’s independence goals. However, Papen rejects the idea, and the alliance does not materialize.

Without German support, Casement’s efforts to secure Irish military aid for the 1916 Easter Rising fails. The Rising proceeds without foreign assistance, and Casement himself is arrested by British authorities in 1916, tried for treason, and executed on August 3, 1916. Despite his execution, he remains remembered as a key figure in Irish nationalism and a symbol of resistance to British rule.

In summary, the September 13, 1914, meeting in Washington, D.C., marks a high point in Casement’s diplomatic campaign for Irish independence, but it ends in rejection, setting the stage for his later role in the Easter Rising and his martyrdom.

(Pictured: Sir Roger Casement (left) and Franz von Papen)


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The Hanging of IRA members Reginald Dunne & Joseph O’Sullivan

Reginald Dunne and Joseph O’Sullivan, members of the London Battalion of the Irish Republican Army (IRA), are hanged at Wandsworth Prison on August 10, 1922, for the assassination of Field Marshal Sir Henry Wilson on June 22, 1922.

Wilson, a senior British Army officer and military advisor to the Belfast Government (Stormont), is shot dead on the steps of his Eaton Square home in London as he returns from an unveiling ceremony at Liverpool Street station. Dunne and O’Sullivan, both former British Army soldiers, have joined the London IRA and are active in the anti-Treaty republican movement. O’Sullivan lost a leg at Ypres, Belgium, in 1917, while Dunne served in the Irish Guards during World War I.

The killing is widely seen as a political act, with Dunne and O’Sullivan claiming to have acted in defence of Irish nationalist principles, blaming Wilson for the “Orange Terror” and the deployment of the Ulster Special Constabulary (USC). Some historians suggest the assassination may have been intended to pressure Michael Collins to attack the Four Courts garrison, though no conclusive evidence of orders was ever established.

After the shooting, Dunne escapes but O’Sullivan is captured by a hostile crowd. Dunne attempts to rescue him but is himself arrested after wounding two police officers and a passerby. Both are tried quickly, found guilty after just three minutes of deliberation, and sentenced to death by Justice Montague Shearman.

Despite petitions from 45,000 people and appeals from figures like George Bernard Shaw, both men are executed on August 10, 1922, and buried within the prison grounds.

The executions are a major political flashpoint. It is only after the abolition of hanging that the law is changed and Joseph’s brother, with the assistance of the Irish National Graves Association, is able to arrange for the bodies of the two men to be repatriated to Ireland.

In 1967, the British government allows the bodies of Dunne and O’Sullivan to be exhumed and returned to Ireland. Former comrades accompany the bodies from England to Dublin Airport, where they place an Irish tricolour flag on Dunne’s coffin. This is the same flag that Dunne had placed on the coffin of Terence MacSwiney at Euston railway station when his body was returned to Cork in 1920.

Graveside orations are held in Dublin, attended by former comrades, Michael Collins’s associates, and representatives of Éamon de Valera, the president of Ireland. The bodies are reinterred in Dean’s Grange Cemetery outside Dublin in 1967.

Dunne’s trial speech, reprinted in the Irish Independent, remains a notable piece of republican political rhetoric, framing the act as a necessary stand for Irish rights.

(Pictured: Joseph O’Sullivan (left) and Reginald Dunne (right))


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Coalition Government’s Cabinet Meets in London

On July 23, 1920, the Lloyd George Coalition Government holds a Cabinet meeting in London, part of the post-war peacetime governance under a coalition mainly of Liberals and Conservatives, addressing issues of reconstruction, Ireland, and war reparations.

The Coalition Government, led by Prime Minister David Lloyd George, is in power from 1918 to 1922 following the end of World War I, continuing the wartime alliance that has included Liberals and Conservatives. By 1920, the Cabinet is navigating Spain’s post-war reconstruction, the political unrest in Ireland, social welfare issues, and economic stabilization following wartime disruption. This period also sees preparation for negotiations over Germany’s reparations and engagement with international diplomacy after the Treaty of Versailles.

During this period, in addition to Lloyd George, the peacetime Cabinet includes key ministers including Bonar Law (Chancellor of the Exchequer and Leader of the House of Commons), Austen Chamberlain (Chancellor of the Exchequer until January 1920; replaced by Sir Robert Horne on trade matters), Arthur Balfour (Secretary of State for Foreign Affairs), Winston Churchill (Secretary for War and Air) and George Curzon (Lord President of the Council and Leader of the House of Lords).

The Coalition Cabinet keeps detailed minutes and memoranda, which are recorded in the CAB 23 series as “Cabinet Conclusions,” starting from November 1919 into the interwar years. These records summarize discussions and decisions but are not verbatim transcriptions.

While the specific agenda for July 23 is not directly cited in the sources, relevant Cabinet business during July 1920 includes:

  1. Reconstruction and Post-War Economy: Addressing unemployment, social welfare of returning servicemen, and government budgetary priorities.
  2. Ireland and Home Rule Legislation: Oversight of the Government of Ireland Act 1920, which has received royal assent earlier in the year, establishing separate parliaments for Northern and Southern Ireland.
  3. International Diplomacy and Reparations: Review of ongoing negotiations concerning German reparations after World War I, potentially preparing for discussions later in London and Paris.

Regarding Ireland, the Cabinet is divided on how to proceed. Some Liberal ministers and Dublin Castle officials are in favour of offering dominion status to Ireland. Conservative ministers argue that the Government must crush the insurgency and proceed with the Government of Ireland Bill. Debate continues after the meeting, with Walter Long warning of “the gravest consequences in Ulster” if the Government changes course.

In summary, the Coalition Cabinet convenes on July 23, 1920, in the context of post-war governance, with ministers like Lloyd George, Bonar Law, Curzon, Balfour, and Churchill participating. While exact meeting details require consulting official CAB series records, the issues at hand involve post-World War I economic recovery, Irish affairs, and international obligations stemming from the Treaty of Versailles.

(Pictured: Prime Minister of the United Kingdom David Lloyd George)


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Death of Alexander Will, First Black & Tan to Die in the Irish War of Independence

Alexander Will, a Constable in the Royal Irish Constabulary (RIC) from Forfar, Scotland, is killed on July 11, 1920, during a sustained Irish Republican Army (IRA) night attack on Rathmore Barracks in Rathmore, County Kerry. He is 24 years old at the time of his death and is the first Temporary Constable (Black and Tan) to die in the Irish War of Independence.

Will is on duty when he is killed by a bomb during the attack. The IRA’s assault is unsuccessful, but it results in Will’s death and the serious injuries of two other RIC officers. His service number is 70974.

Posthumously, Will is awarded the Constabulary Medal for Gallantry for his bravery under fire. According to RIC forum records, the medal is presented on December 22, 1920.

Will serves in the Scottish Horse Regiment during World War I, where he is wounded just a week before the Armistice. After his death, his body is brought back to Scotland by steamer, and his funeral is attended by RIC officers. His family has roots in Kincardineshire, Scotland, with his father, William Will, and grandfather also named Alexander Will.

Will is remembered as one of the early RIC officers to die in the Irish War of Independence, and his death marked a significant moment in the conflict’s early years. His story is commemorated in police remembrance records and in centenary tributes.


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Formal Creation of the Royal Dublin Fusiliers


The Royal Dublin Fusiliers, an infantry regiment of the British Army, is created on July 1, 1881, as part of the British Army’s Childers Reforms by amalgamating the 102nd Regiment of Foot (Royal Madras Fusiliers) and the 103rd Regiment of Foot (Royal Bombay Fusiliers), both originally European regiments of the East India Company transferred to the British Army in 1861. The regiment’s home depot is located in Naas, County Kildare, and it recruits primarily from counties Dublin, Kildare, Wicklow, and Carlow. Initially, it consists of two regular battalions, with additional battalions raised during wartime.

The regiment serves in the Second Boer War (1899–1902) in Southern Africa, participating in key actions such as the Siege of Ladysmith and battles at Colenso and Tugela Heights. Notably, a detachment escorts an armoured train carrying war correspondent Winston Churchill, which is ambushed by Boer forces.

During World War I, the Royal Dublin Fusiliers expand to six additional battalions and see action on the Western Front, the Mediterranean, and the Middle East. The regiment suffers heavy casualties at battles such as Le Cateau and the Gallipoli landings at Helles, where only 11 of 1,100 men survive the landing. Members of the regiment are awarded three Victoria Crosses for acts of bravery during the war.

Following the establishment of the Irish Free State in 1922, the Royal Dublin Fusiliers, along with four other southern Irish regiments, is disbanded. The regiment’s history and the service of its soldiers are commemorated by the Royal Dublin Fusiliers Association, which maintains archives, exhibitions, and digitised collections of letters and records from World War I. These archives provide insight into the experiences of Irish soldiers and the conditions they face on the front lines.

The regiment is remembered for its courage and sacrifice, with dedicated websites and museum collections preserving its history, medals, and personal accounts of soldiers. The Royal Dublin Fusiliers remain a significant part of Irish military heritage, reflecting both the contributions of Irish soldiers to the British Army and the complex history of Ireland during the early 20th century.


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The Adavoyle Train Ambush

The Adavoyle Train Ambush takes place on June 24, 1921, during the Irish War of Independence, when the Irish Republican Army’s Fourth Northern Division, led by Frank Aiken, carries out a targeted attack on a British military train near Adavoyle railway station in the rural townland of Adavoyle, near Dromintee, in County Armagh, Northern Ireland.

The train is returning from Belfast, where King George V has just opened the first Parliament of Northern Ireland on June 22. It is part of a heavy security escort for the King, including the 10th Royal Hussars (machine gun troop) and their horses, who have been stationed at the Curragh in County Meath. Three special trains have been arranged to bring them back to Dublin, but the third is attacked.

The IRA plants a mine or detonates a bomb that partially derails the train a mile north of Adavoyle Station, between Newry and Dundalk. The derailment causes ten carriages to be thrown across an embankment, killing and injuring many soldiers and horses.

At least three British soldiers are killed (including a sergeant and a private) and twenty are wounded, some of whom later die from their injuries. The train guard, Frank Gallagher, is killed and two other railway officials are seriously injured. Reports vary about the number of horses killed. Some say over 40 horses are killed while others claim as many as 100. Many horses are shot to prevent them from being captured or causing further casualties. Soldiers reportedly weep for their dead horses, as they had served together in World War I. A local farmer and a train guard are also shot dead in the aftermath.

The attack causes an outcry in Britain, highlighting the IRA’s ability to strike high-profile military convoys. The incident underscores the vulnerability of British forces returning from political events in Ireland and is one of several such attacks during the War of Independence.

The Adavoyle ambush is remembered as a symbolic and brutal act in the conflict, combining military casualties with the killing of animals that have been comrades in war. It also illustrates the IRA’s use of railways as a strategic target during the campaign.

Today, the Adavoyle railway station is in ruins, though the Belfast-Dublin line still passes the site.


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Birth of Bindon Blood Stoney, Civil Engineer

Bindon Blood Stoney FRS, a civil engineer who also makes some significant contributions to astronomy, is born on June 13, 1828, at Oakley Park, King’s County (now County Offaly).

Stoney is the younger son of George Stoney and Anne Blood, second daughter of Bindon Blood of Cranagher and Rockforest, County Clare. His brother is the physicist George Johnstone Stoney, known for coining the term electron for the fundamental unit of electricity. He is also the uncle of another Irish physicist George Francis FitzGerald, the son of his sister Anne Frances. His nieces are Edith Anne Stoney, a pioneer medical physicist, and Florence Stoney, the first female radiologist in the United Kingdom. Both serve in hospitals near the front line during World War I.

Stoney is privately educated at home while his father’s properties lose value in the post-Napoleonic depression and are sold during the famine of 1845–49. He then attends Trinity College Dublin (TCD), where in 1850 he obtains his BA and a diploma in civil engineering with distinction. He marries Susannah Frances Walker on October 7, 1879; they have four children.

In 1850–52, prior to beginning his engineering work, Stoney assists William Parsons, 3rd Earl of Rosse at Parsonstown. There he accurately maps the spiral form of the Andromeda Galaxy and observes 105 New General Catalogue (NGC) objects and 8 Index Catalogues (IC) objects. Ninety-one of the NGC objects and all of the IC objects are new. On March 1, 1851, he discovers the spiral galaxy NGC 5609, which is the most distant visually observed galaxy in the NGC catalogue.

Bindon’s career in engineering commences when he works on surveys for the Aranjuez to Almansa railway in Spain from 1852 to 1853. Upon returning to Ireland in 1854, he is appointed as resident engineer under James Barton on the Boyne railway viaduct until its completion in 1855. This viaduct claims to have the longest span in the world and has the world’s longest girders at the time.

Bindon’s groundbreaking work building a metal bridge with a span of such dimensions using shock-absorbent wrought-iron latticed bars instead of a continuity of plate with Barton is possibly the first of its kind. It is the basis for his later two-volume publication The theory of strains in girders and similar structures, with observations on the strength and other properties of materials (1866), nicknamed “Stoney on strains” and reproduced in two further editions.

Bindon becomes an associate of the Institution of Civil Engineers (ICE) in January 1858 and a full member in November 1863.

In 1856, Bindon is appointed as assistant engineer to George Halpin, Jr. at the Ballast Board on Westmoreland Street and in 1859 he is appointed as Executive Engineer. He is ambitious and an engineering innovator who comes up with a cheap way to develop the Dublin Port – something appreciated by the board but they also do not want to upset Halpin. When Halpin retires, Stoney becomes the new inspector of works and in 1868, becomes the first chief engineer of the newly constituted Dublin Port and Docks Board.

Bindon designs a large dredging plant and rebuilds nearly 7,000 feet of quay walls along both north and south banks of the River Liffey, replacing the tidal berths by deep water berths. Additionally, the northern quays are lengthened eastward and the formation of Alexandra Basin begins in 1871 and is partially completed by 1885. In addition to harbour works, he is in charge of the design and construction of two major bridges that cross the River Liffey. In 1872–1875 he largely rebuilds Essex Bridge, designed in the 1750s by George Semple to his own flamboyant design. It is renamed Grattan Bridge after Henry Grattan. In 1877–80 he redesigns the 1790s Carlisle Bridge of James Gandon, renamed O’Connell Bridge after Daniel O’Connell, to provide a crossing linking Sackville (later O’Connell) Street with the converging streets to the south. He builds a new iron swing bridge in 1877–1879, just west of The Custom House named Beresford Bridge.

Stoney invents a diving bell, and means to use precast concrete. Toward the end of his career, he erects the North Bull Lighthouse (1877–80) to replace the inadequate light on the Bull Wall marking the northern side of the Dublin port channel entrance opposite Poolbeg Lighthouse before finally retiring in 1898.

Stoney is admitted to the Royal Irish Academy (RIA) in 1857. He is given an honorary degree by University College Dublin (UCD) in recognition of his achievements and is later elected President of the Institution of Engineers of Ireland in 1871. In 1874, he is awarded the Telford Medal and Telford premium of the Institution of Civil Engineers for a paper documenting his work on the northern quays. He is elected Fellow of the Royal Society on June 2, 1881.

Stoney dies in Dublin on May 5, 1909, and he is buried in Mount Jerome Cemetery. Stoney Road in East Wall is named after him.


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Birth of Eoin MacNeill, Gaelic Revivalist, Nationalist & Politician

Eoin MacNeill, Irish scholar, Irish language enthusiast, Gaelic revivalist, nationalist and politician, is born John McNeill in Glenarm, County Antrim, on May 15, 1867.

MacNeill is one of five children born to Archibald McNeill, a Roman Catholic working-class baker, sailor and merchant, and his wife, Rosetta McNeill (née McAuley), also a Catholic. He is raised in Glenarm, an area which “still retained some Irish-language traditions.” His niece is nationalist and teacher, Máirín Beaumont.

MacNeill is educated at St. Malachy’s College and Queen’s College, Belfast. He is interested in Irish history and immerses himself in its study. He achieves a Bachelor of Arts degree in economics, jurisprudence and constitutional history in 1888, and then works in the British Civil Service.

MacNeill co-founds the Gaelic League in 1893, along with Douglas Hyde. He is unpaid secretary from 1893 to 1897 and then becomes the initial editor of the League’s official newspaper An Claidheamh Soluis (1899–1901). He is also editor of the Gaelic Journal from 1894 to 1899. In 1908, he is appointed professor of early Irish history at University College Dublin (UCD).

MacNeill marries Agnes Moore on April 19, 1898. The couple has eight children, four sons and four daughters (though the 1911 census entry for MacNeill notes eleven children, seven of whom are still alive).

The Gaelic League is from the start strictly non-political, but in 1915, a proposal is put forward to abandon that policy and become a semi-political organisation. MacNeill strongly supports this and rallies to his side a majority of delegates at the 1915 Oireachtas. Douglas Hyde, a non-political Protestant, who had co-founded the League and been its president for 22 years, resigns immediately afterward.

Through the Gaelic League, MacNeill meets members of Sinn Féin, the Irish Republican Brotherhood (IRB), and other nationalists and republicans. One such colleague, The O’Rahilly, runs the league’s newspaper An Claidheamh Soluis, and in October 1913 asks MacNeill to write an editorial for it on a subject broader than Irish language issues. He submits a piece called “The North Began,” encouraging the formation of a nationalist volunteer force committed to Irish Home Rule, much as the unionists had done earlier in the year with the Ulster Volunteers to thwart Home Rule in Ireland. In July 1915, he comments on the threat that the unarmed nationalists in Ulster might face: “…a demented…English driven Orange Army would be let loose upon the helpless Catholic people of Ulster, who would be driven out of the province or massacred where they stood.”

Bulmer Hobson, a member of the IRB, approaches MacNeill about bringing the idea to fruition, and, through a series of meetings, MacNeill becomes chair of the council that forms the Irish Volunteers, later becoming its chief of staff. Unlike the IRB, he is opposed to the idea of an armed rebellion, except in resisting any suppression of the Volunteers, seeing little hope of success in open battle against the British army.

The Irish Volunteers have been infiltrated by the Irish Republican Brotherhood, which plan on using the organisation to stage an armed rebellion, to separate Ireland from the United Kingdom and establishing an Irish Republic. The entry of the UK into World War I is, in their view, a perfect opportunity to do that. With the cooperation of James Connolly and the Irish Citizen Army, a secret council of IRB officials plan a general rising at Easter 1916. On the Wednesday before Easter, they present MacNeill with a letter, allegedly stolen from high-ranking British staff in Dublin Castle, indicating that the British are going to arrest him and all the other nationalist leaders. Unbeknownst to MacNeill, the letter—called the Castle Document—is a forgery.

When MacNeill learns about the IRB’s plans, and when he is informed that Roger Casement is about to land in County Kerry with a shipment of German arms, he is reluctantly persuaded to go along with them, believing British action is now imminent and that mobilization of the Irish Volunteers will be justified as a defensive act. However, after learning that the German arms shipment has been intercepted and Casement arrested, and having confronted Patrick Pearse, who refuses to relent, MacNeill countermands the order for the Rising by sending written messages to leaders around the country, and placing a notice in the Sunday Independent cancelling the planned “manoeuvres.” This greatly reduces the number of volunteers who report for duty on the day of the Easter Rising.

Pearse, Connolly and the others agree that the uprising will go ahead anyway, but it begins one day later than originally intended to ensure that the authorities are taken by surprise. Beginning on Easter Monday, April 24, 1916, the Rising lasts less than a week. After the surrender of the rebels, MacNeill is arrested although he has taken no part in the insurrection. The rebel leader Tom Clarke, according to his wife Kathleen, warns her on the day before his execution, “I want you to see to it that our people know of his treachery to us. He must never be allowed back into the National life of this country, for so sure as he is, so sure will he act treacherously in a crisis. He is a weak man, but I know every effort will be made to whitewash him.”

MacNeill is released from prison in 1917 and is elected Member of Parliament (MP) for the National University and Londonderry City constituencies for Sinn Féin in the 1918 United Kingdom general election. In line with abstentionist Sinn Féin policy, he refuses to take his seat in the British House of Commons in London and sits instead in the newly convened Dáil Éireann in Dublin, where he is made Secretary for Industries in the second ministry of the First Dáil. He is a member of the Parliament of Northern Ireland for Londonderry between 1921 and 1925, although he never takes his seat. In 1921, he supports the Anglo-Irish Treaty. In 1922, he is in a minority of pro-Treaty delegates at the Irish Race Convention in Paris. Following the establishment of the Irish Free State, he becomes Minister for Education in its second (provisional) government, the third Dáil. He strongly supports the execution of Richard Barrett, Liam Mellows, Joe McKelvey and Rory O’Connor during the Irish Civil War.

In 1923, MacNeill, a committed internationalist, is also a key member of the diplomatic team that oversees Ireland’s entry to the League of Nations.

MacNeill’s family is split on the treaty issue. One son, Brian, takes the anti-Treaty side and is killed in disputed circumstances near Sligo by Free State troops during the Irish Civil War in September 1922. Two other sons, Niall and Turloch, as well as nephew Hugo MacNeill, serve as officers in the Free State Army. One of his brothers, James McNeill, is the second and penultimate Governor-General of the Irish Free State.

In 1924, the three-man Irish Boundary Commission is set up to settle the border between Northern Ireland and the Irish Free State. MacNeill represents the Irish Free State. He is the only member of the Commission without legal training and has been described as being “pathetically out of his depth.” However, each of the Commissioners is selected out of political expediency rather than for any established competence or insight into boundary making. On November 7, 1925, a conservative British newspaper, The Morning Post, publishes a leaked map showing a part of eastern County Donegal (mainly The Laggan district) that is to be transferred to Northern Ireland, the opposite of the main aims of the commission. Perhaps embarrassed by that, especially since he said that it had declined to respect the terms of the Treaty, MacNeill resigns from the commission on November 20. Hus performance in the Boundary Commission has been deemed highly negative in a 2025 study The Root of All Evil: The Irish Boundary Commission.

On November 24, 1925, MacNeill also resign as Minister for Education, a position unrelated to his work on the commission.

On December 3, 1925, the Free State government agrees with the governments in London and Belfast to end its onerous treaty requirement to pay its share of the United Kingdom’s “imperial debt” and, in exchange, agrees that the 1920 boundary will remain as it is, overriding the commission. This angers many nationalists and MacNeill is the subject of much criticism, but in reality, he and the commission have been sidestepped by the intergovernmental debt renegotiation. In any case, despite his resignations, the intergovernmental boundary deal is approved by a Dáil vote of 71–20 on December 10, 1925, and MacNeill is listed as voting with the majority in favour. He loses his Dáil seat at the June 1927 Irish general election.

MacNeill is an important scholar of Irish history and among the first to study Early Irish law, offering both his interpretations, which at times are coloured by his nationalism, and translations into English. He is also the first to uncover the nature of succession in Irish kingship, and his theories are the foundation for modern ideas on the subject.

MacNeill is a contributor to the Royal Irish Academy‘s Clare Island Survey, recording the Irish place names of the island. His disagreements and disputes with Goddard Henry Orpen, particularly over the latter’s book Ireland under the Normans, generate controversy.

MacNeill is President of the Royal Society of Antiquaries of Ireland (RSAI) from 1937 to 1940 and President of the Royal Irish Academy (RIA) from 1940 to 1943.

MacNeill retires from politics completely and becomes Chair of the Irish Manuscripts Commission. In his later years he devotes his life to scholarship and publishes several books on Irish history. He dies in Dublin of natural causes, aged 78, on October 15, 1945. He is buried in Kilbarrack Cemetery.

MacNeill’s grandson Michael McDowell serves as Tánaiste, Minister for Justice, Equality and Law Reform, TD and a Senator. Another grandson, Myles Tierney, serves as a member of Dublin County Council, where he is Fine Gael whip on the council.