He also continued his involvement with the GAA, played senior football for Monaghan and was arrested, along with O’Duffy, before a game between Cavan and Armagh after refusing to apply for permits from the British authorities to hold the match.

After his release from prison Dan Hogan continued to play an active role in the border areas and by the time of the truce was in command of the 5th Northern Division of the IRA.

He supported the Anglo-Irish Treaty and joined the Free State Army at the beginning of the Irish Civil War rising to the rank of Major General of the Eastern Command.

He continued serving with the army after the end of the Civil War and in 1927 succeeded General Peader McMahon as Chief of Staff of the Defence Forces.

[citation needed] He lived first at 13 Lincoln Avenue, Massapequa, Long Island, with his wife Betty Hogan (née Flynn), then they moved to 233 Ashland Place, Brooklyn, in the mid-1930s.