Notable Éamonn's in history include Eamonn Campbell of The Dubliners and who was the driving force behind the The Dubliners and The Pogues collaboration and the classic The Irish Rover.
Another one is Éamonn Ceant; In 1913 he joined the Irish Republican Brotherhood, and later was one of the founding members of the Irish Volunteers. As such he was important in the planning of the Easter Rising of 1916, being one of the original members of the Military Committee and thus one of the seven signatories of the Proclamation of the Irish Republic. He was made commandant of the 4th Battalion of the Volunteers, and during the Rising was stationed at the South Dublin Union and the Marrowbone Lane Distillery , with more than 100 men under his command, notably his second-in-command Cathal Brugha, and W. T. Cosgrave. His unit saw intense fighting at times during the week, but surrendered when ordered to do so by his superior officer Padraig Pearse. Ceannt's position was one of only two that was not taken in the rising, along with Éamon de Valera's at Boland's Mill. Ceannt was held in Kilmainham Jail until his execution by firing squad on 8 May 1916, aged 34.

Probably the most notable is Éamon de Valera, the first Tsaoich of the Republic of Ireland. De Valera was a leader of Ireland's struggle for independence from Britain, and the anti-Treaty opposition in the ensuing Irish Civil War (1922–1923), in which he opposed Michael Collins, but was defeated. In 1926, he founded Fianna Fáil, and became prime minister (1932–48, 1951–54, and 1957–58). His political creed evolved from militant republicanism to social and cultural conservatism. De Valera used military tribunals and the newly created Army Volunteer Reserve to thwart efforts of both the Irish Republican Army and the Army Comrades Association during the 1930s.
