Phil, if you go to that link for the chords and you already know the song you will notice that the lyrics have an error. It should not be General Mark, but General Meagher, a real person, leader of the Irish Brigade in the US Civil War. Here is an earlier discussion of Paddy's Lamentation and history about Meagher. Paddy's Lamentation. (It includes a link to how I sing it unaccompanied.)

Alice