David Patrick Moran (Irish: Dáithí Pádraig Ó Móráin), better known as simply D. P. Moran, Irish journalist, activist and cultural-political theorist, dies on January 31, 1936. He is known as the principal advocate of a specifically Gaelic Catholic Irish nationalism during the early 20th century. Associated with the wider Celtic Revival, he promotes his ideas primarily through his journal, The Leader, and compilations of his articles such as the book The Philosophy of Irish Ireland.

Moran is born in Manor, a townland in Waterford, the youngest of twenty children born to James Moran, a builder, and Elizabeth Moran (née Casey). One of his brothers goes on to serve on the defense team of Patrick O’Donnell.

Moran is educated at Castleknock College, near Dublin, before working as a journalist in London, where he is a member of the Irish Literary Society. His brand of nationalism and concept of the decolonisation of Ireland is of a homogeneous Irish-speaking and Roman Catholic nation, promoting the revival of the Irish language and of Gaelic games in Irish cultural life. He often employes disparaging terms (West Brits, shoneens, sourfaces) in reference to Unionists and/or non-Catholics.

Despite the failure of the 1893 Home Rule Bill and the division of the Irish Parliamentary Party (IPP) in 1891, nationalists take heart from Douglas Hyde‘s 1892 speech, entitled “The Necessity for De-anglicising Ireland.” Moran builds upon this thesis and provides a wider ideology for enthusiasts, particularly after the re-unification of most of the nationalist parties from 1900.

In his 1905 text The Philosophy of Irish-Ireland, Moran argues that to be Irish requires:

• the use of the Irish language
• membership in the Roman Catholic Church
• an anti-materialist outlook on life
• the playing of only Gaelic games

Though a sponsor of the use of Irish, he never becomes fluent in the language himself. He emphasises the use of English in 1908–09 as “an active, vigilant, and merciless propaganda in the English language.” In the longer term, when Irish becomes again the language of the people, its use enables a de facto censorship of any foreign and unwelcome ideas written in English.

While Moran argues that the idea of “the Gael” is one that can assimilate others, he also feels that it will be hard if not impossible for members of the Church of Ireland who support the British Empire to ever qualify as Irish, being “resident aliens.” This extends to Anglo-Irish literature. He rejects the Abbey Theatre and questions Yeats‘ genius. He once speaks out against the influence Britain has over Irish Universities, stating, “We are all Palemen now.” In the matter of religious differences, Daniel O’Connell had said in 1826 that “the [Roman] Catholics of Ireland are a nation.” Moran moves beyond that, affirming in 1901 that “…the Irish Nation is de facto a Catholic nation.” He is virulent in his opposition to female suffrage.

Moran’s articles frequently contrast “Belfast” with “Ireland,” yet hope that Belfast can eventually change and assimilate. He feels that Ulster unionists should “… be grateful to the Irish nation for being willing to adopt them.” His paper publishes numerous articles by the future TD Arthur Clery (writing under the pen name “Chanel”), who advocates partition on the grounds that Ulster unionists are a separate nation, but Moran himself disagrees and refuses to concede the legitimacy of a northern Protestant identity.

When Irish republicans initiate the Irish War of Independence in 1919, widescale anti-Catholic rioting breaks out in Belfast in 1920 and 1922. Moran identifies this as being caused by Orangeism, which he describes as “a sore and a cancer” in Ireland. He also alleges that “bigotry on the part of Catholics in the Six Counties is immediately due to Orange bigotry.”

Moran is initially a supporter of the Irish Parliamentary Party, believing that the separatism advocated by Arthur Griffith‘s Sinn Féin is impracticable; however, he opposes John Redmond‘s support of the British World War I effort.

Moran supports the Anglo-Irish Treaty agreed in 1921–22 and sees the partition of Ireland as beneficial for a truly Irish culture in the Irish Free State. This causes a sea-change in his opinions; from now on Northern Ireland can be safely ignored, along with what he sees as the English evils of “free thought, free trade, and free literature.” He claims Irish life and culture has to be protected from foreign influences, including the twin evils of the music hall and the English press. The new jazz music of the 1920s and other imported cultural elements are deprecated as “imported debasement and rot.”

On January 9, 1901, Moran marries Theresa Catherine, daughter of Thomas Francis O’Toole, a former Parnellite mayor of Waterford. They have four sons and one daughter.

Moran dies suddenly at his home in Skerries, Dublin, on January 31, 1936. His daughter, Nuala, who has written for the paper since the early 1920s, generally on artistic and social matters, takes over the running of the paper on his death, though it is then much diminished in size and influence. Nuala, who never marries, retains control of The Leader until it ceases publication in 1971.