Seán O'Duffy (; 1886 – 20 October 1981) was an Irish sports administrator. For 40 years, he was heavily involved in the development of camogie in Ireland; coordinating it on a national level. O'Duffy's contributions to camogie have been widely respected and the title "Mr. Camogie," is often associated with him. Early life O'Duffy was born in the year 1886, in Cill an Bhaile (Killawalla), County Mayo, Ireland; a town not far from Westport. He lived there until the age of 14, arriving in Dublin during the year 1900. During his time in Dublin, O'Duffy resided in Kenilworth Park, Harolds Cross, an inner suburb located in the south of Dublin. Throughout his life, O'Duffy had a strong interest in Camoige, but was also involved in political activities, taking part in the Dublin lock-out in 1913; a strike led by Jim Larkin, who was said to be O'Duffy's "hero" in his early life. 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. Career A soccer player and referee in the early 1910s, he became a founder member of Crokes GAA Club and a GAA referee, handling up to five matches on Sundays and refereeing as far away as Innisfail Park in New York in 1930. He was one of the group of people who sponsored the movement to have the Jones's Road Sportsground dedicated to Archbishop Thomas Croke. He was present at the reorganisation convention of the Camogie Association under the auspices of the Crokes cub in 1910 which resulted in the spread of camogie to 11 counties. Role in the military Sean O'Duffy began his military service as part of the Irish Volunteers in the Easter Rising on 1 April 1916. He fought the entire week and remained part of the Irish Volunteers until 31 March 1919. O'Duffy was a member of the A Company in the 1st Battalion, in the Four Courts Garrison, under his commanding officer, D. O'Callaghan. He fought in the most hectic battlegrounds in North King Street to Church Street sector, including: North King St., Columbhille Hall, North Brunswick St., the Linenhall Barracks on Lisborn St., and Church St. One family recounts the story of how when one of their family members fell, according to witness reports, O’Duffy helped to carry their fallen kin to the hospital. He was