[1] In the year 1940, O'Duffy married a girl named Kathleen McKeown, from Omeath, County Louth; whom he worked with to regularly supply newspapers with camogie updates.

He was one of the group of people who sponsored the movement to have the Jones's Road Sportsground dedicated to Archbishop Thomas Croke.

Nevertheless, even after the Easter Rising and his imprisonment, he managed to hold onto the uniform, a greenish-grey fabric, that identified him as part of the Volunteer Army.

[4][7][8] In his later years, O'Duffy became established in the world of GAA (Gaelic Athletic Association), and, the traditional Irish sport of camogie.

Shortly after, on 29 March 1979, the radio programme 'Highways and Byways' interviewed O'Duffy for their 1916 archives, in which he described finding out Patrick Pearse had surrendered during the 1916 rising.

[12] He joined the Irish Civil Service in 1925 and worked there until his retirement, living in 50 Cashmir Road in Harold's Cross, Dublin.