Thomas MacDonagh was executed in 1916 for his part in the Easter Rising. He was also a poet and teacher, publishing a book of poems in 1902 entitled Through the Ivory Gate. Quite a life. Shot at the age of 38, he was the 3rd signatory of the Proclamation to be shot. It is said that as he was taken from his cell to be executed he whistled. His widow, Muriel, died of heart failure while swimming in Skerries, County Dublin on 9 July 1917. She became angry at the sight of British flags on the beech and swam with an Irish flag to plant it on a small island. Muriel is a whole story worth telling. Look out for the article.
There is a heritage centre in Cloughjordan, Co. Tipperary.