Éamonn Mac Thomáis, author, broadcaster, historian, Irish Republican, advocate of the Irish language and lecturer, dies on August 16, 2002. He presents his own series on Dublin on RTÉ during the 1970s and is well known for guided tours and lectures of his beloved Dublin.

Mac Thomáis comes from a staunch Republican family. He is born Edward Patrick Thomas in the Dublin suburb of Rathmines on January 13, 1927. His father, a fire-brigade officer, dies when he is five years old and his family moves to Goldenbridge, Inchicore. He leaves school at thirteen to work as delivery boy for White Heather Laundry, learning Dublin neighbourhoods with great thoroughness. He says he found work to help his mother pay the rent. He later works as a clerk and is appointed credit controller for an engineering firm.

Mac Thomáis joins the Dublin Brigade of the Irish Republican Army as a young man and is active in the preparations for and prosecution of the 1956-62 border campaign. He is interned in Curragh Camp during the campaign and in December 1961 is sentenced to four months imprisonment under the Offences Against the State Act.

At the November 1959 Ardfheis Mac Thomáis is elected to the Ardchomhairle of Sinn Féin and edits and contributes to the Sinn Féin newspaper United Irishman. He is a close friend of Tomás Mac Giolla and is deeply affected by the 1970 split in Sinn Féin. He takes the Provisional side, opposing Mac Giolla.

Mac Thomáis takes over as editor of An Phoblacht in 1972. In July 1973, he is arrested and charged with IRA membership at the Special Criminal Court in Dublin. He refuses to recognise the court, but he gives a lengthy address from the dock. The following month he is sentenced to 15-months imprisonment. Within two months of completing his sentence he is again before the court on the same charge and again receives a 15-month sentence. Editors of six left-wing and Irish-language journals call for his release, as do a number of writers, and hundreds attend protest meetings – to no avail. He serves his full sentence.

Tim Pat Coogan, editor of The Irish Press, claims the charges against Mac Thomáis are politically motivated to a large degree as his activities are confined strictly to the newspaper An Phoblacht. Under Section 31 of the Broadcasting Act, due to his membership in Sinn Féin in the 1970s he is removed from his position in making some of the RTÉ historical programmes. As a historian he makes numerous contributions to various historical publications such as the Dublin Historical Review.

From 1974 Mac Thomáis writes a number of books on old Dublin. They sell well and remain in print for over 20 years. He also starts a number of walking tours of Dublin, which prove very popular.

Mac Thomáis dies in Dublin on August 16, 2002. He is buried in the republican plot in Dublin’s Glasnevin Cemetery, next to Frank Ryan.

Mac Thomáis’s son Shane, also a historian, runs similar walking tours and is resident historian at Glasnevin Cemetery before his death in 2014.