
Gerard Anthony Hayes-McCoy, an Irish historian regarded as one of the leading Irish historians of his generation, is born in Galway, County Galway, on August 15, 1911.
Hayes-McCoy is born to Thomas Hayes-McCoy and Mary Kathleen Hayes-McCoy (née Wallace). His grandfather, Thomas Hayes-McCoy, is a Dubliner who as a child came to Galway in 1834 and is later a well-known Parnellite. His maternal grandfather, Thomas Burke, is a Galway artist. He grows up on Eyre Square where his father runs a gentleman’s hairdressing business. His two older siblings are Ignatius and Marguerite. The latter receives a PhD-degree in History at University College Galway (UCG), and later teaches at the Galway Technical School.
Hayes-McCoy receives his early education from the Patrician Brothers, Galway. His earliest notebook of 1927 and a manuscript history of Poland of the same year, now at the National Library of Ireland (NLI), testify to an early interest in history and heritage. From 1928 to 1932 he is a student scholarship holder at University College Galway, graduating in 1932 with a Bachelor of Commerce, and a Bachelor of Arts, with first-class honours in both, and a specialisation in “History, Ethics, Politics” for the latter. Mary Donovan O’Sullivan is one of his professors of history, and Liam Ó Briain, professor of Romance languages, is a stimulating influence. At this time, Hayes-McCoy is a member of the Republican Club, a committee member of the Literary and Debating Society, and in 1931 he is one of the founding members of a new Irish Students’ Association.
Hayes-McCoy pursues his PhD at the University of Edinburgh, and then spends two years at the Institute of Historical Research, London, in the Tudor seminar of J. E. Neale, rewriting his PhD and eventually publishing it as Scots mercenary forces in Ireland, 1565–1603 (Dublin and London, 1937), with a foreword by Eoin MacNeill. This is characterised by meticulous archival research, and it anticipates by sixty years the much-vaunted New British History of the late twentieth century by tracing the interconnections between events in England, Ireland, and Scotland.
In the absence of an academic post, Hayes-McCoy becomes an assistant keeper in the Art and Industrial Division at the National Museum of Ireland (1939–1959), with a responsibility for the Military History, and the Irish War of Independence collections. One of his first tasks is to prepare a standing exhibition on Irish history before 1916. His research, long-standing personal interest in the military, and his curatorial experience, helps form an expert knowledge of historical Irish warfare. This leads to his role in co-founding The Military History Society of Ireland in 1949 whose journal, The Irish Sword, he edits. He describes the vagaries of setting up such a body, its reception, and the historiographical considerations attendant on it, in a paper published posthumously in The Irish Sword.
On August 19, 1941, Hayes-McCoy marries Mary Margaret “May” O’Connor, daughter of C.J. and M.B. O’Connor of New Ross/Enniscorthy. They have three daughters and two sons: Mary, Ann, Ian, Robert, Felicity. The family home is in Dublin.
Earning high reputation by continued research and by publishing leads to Hayes-McCoy’s receipt of the D.Litt. degree from the National University, and to his membership in the Royal Irish Academy in 1950. In his professional career, apart from the broad spectrum of press publications, he publishes prolifically. The works that are judged most influential, are his Scots mercenary forces in Ireland 1565–1603 (1937), the papers “The early history of guns in Ireland” (1938–1939), “Strategy and tactics in Irish warfare, 1593–1601” (1941), “The army of Ulster, 1593–1601” (1951), the controversial “Gaelic society in Ireland in the late sixteenth century” (1963), and the monographs “Irish battles” (London 1969), and “A history of Irish flags from earliest times” (Dublin 1979). A member of the Irish Manuscripts Commission, his most notable contribution is the publication “Ulster and other Irish maps, c.1600” (Dublin 1964).
In 1946, Hayes-McCoy is appointed to a committee of eight historians to advise on setting up the Bureau of Military History, a body established for the creation and compilation of material on the history of the Irish movements for independence, 1913–1921, specifically from witness statements. The committee is also to further offer guidance and oversee progress of the Bureau in coordination with the Ministry of Defence. It subsequently expresses concerns about the state’s role and methods in the collection of statements.
Having begun writing for the press at an early stage, Hayes-McCoy’s public position at the Museum encourages him to go further. He has broad involvement with local history groups to whom he presents papers, and also works for newspapers and for radio and television. To the national and Galway press he usually contributes articles on military aspects of Irish history, as well as book reviews, but he also uses them as a platform to engage with what he sees are flaws in the education of history in Ireland which during his lifetime is constrained by a certain degree of political and cultural state control.
During the 1940s and 1950s, Hayes-McCoy becomes involved in a number of paratheatrical events of national significance one of which – the “Pageant of St.Patrick” for which he writes the script (An Tóstal 1954) – is realised on an immense scale. He scripts these works to begin with and is later principally engaged as historical consultant. In that capacity, he collaborates in 1955 and 1956 with Micheál Mac Liammóir and Denis Johnston on their scripts for pageants on St. Patrick and on the Táin Bó Cuailgne, at times finding it difficult to square the historical liberties taken by these artists with his own role.
On Irish radio and television Hayes-McCoy is most active in the mid-1960s, editing and contributing to Thomas Davis lectures series, writing scripts for a series of thirty children’s programmes on all aspects of Irish history, and preparing/contributing on air to the television series “Irish battles” and “The long winter.” As well as writing for RTÉ, Ireland’s national broadcaster, he contributes scripts to BBC Northern Ireland‘s schools radio programmes.
In 1959, Hayes-McCoy succeeds to the chair of his former history professor at UCG with the full remit of lecturing, administering examinations to undergraduates, and supervising postgraduate theses. Among his students who continue in the field of history are Nicholas Canny, Martin Coen, Patrick Melvin, Peter Toner, Tony Claffey, and Breandán Ó Bric. After his appointment to UCG, the family home remains in Dublin, and he commutes to Galway weekly during term time.
In the early 1960s, Hayes-McCoy becomes a spokesperson for the movement rekindled by the Old Galway Society to preserve the landmark “Lion’s Tower” in the city. The ultimate failure of the campaign informs his regret, expressed a year later, that Ireland is forgetful about its past and that “we don’t bother to find out about it or to maintain our ancient heritage,” and, on a perceived spirit of conformity, “take my own city of Galway, it is now more prosperous than it was, but it is no longer distinctive. I do not believe that it is essential for progress that we should lose our heritage.”
While at one time member and secretary of the London Sinn Féin office and informed by a pride of country and place, Hayes-McCoy’s professional and private outlook are marked by a distrust of nationalism or of any antagonising national agendas compromising genuine scholarship. In a paper drafted on tendencies in modern historical studies, he criticises the two historiographical extremes, each to be avoided, each unfortunately characteristic of the moment – extreme de-bunking and extreme “adding for effect.” “A history is a record of fact; to add pseudo-facts is as grave a sin as to leave out real facts that may change the colour of the whole.”
Hayes-McCoy’s abiding pastime is drawing. Among his papers in the James Hardiman Library, NUI Galway are approximately 40 items with predominantly maritime subjects, and he has a special regard for the history of ships, and a romantic liking of the sea. He also has a lifelong interest in Robert Louis Stevenson, Sir Walter Scott, and their works, and in the Pre-Raphaelite movement.
Hayes-McCoy’s middle age is marked by intermittent ill health. He dies on November 27, 1975, in his room at the Great Southern Hotel, Eyre Square, Galway.
Hayes-McCoy’s papers are held at the James Hardiman Library, National University of Ireland, Galway.


