In 1909 there were three clubs in the parish: the Red Hands (which disbanded in 1910), Golan and Bundoran Junction Éire Ógs; however until 1914, matches were only played on Feis days.

The Gaelic League flourished up to 1920, Trillick parish priest Fr Matt Maguire being President of Dáil Uladh.

Following the establishment of the West Tyrone Board on 29 October 1931, the Trillick St Macartan's Club was formed in 1932, continuing to this day.

Beaten by the eventual champions in 1938, Trillick were awaiting the 1939 final when the Tyrone County Board declared that year's championship void.

Trillick's Paddy Donnelly captained Tyrone's first ever cup-winning team, the Dr Lagan Cup winners, on 8 November 1942.

They progressed to the Ulster Intermediate Club Football Championship, and became the first team from the parish to win a Provincial title defeating Greenlough of Derry.

[citation needed] The Willie Donnelly Memorial Park, enlarged in 1970, had floodlighting installed in 1984, and a Prunty pitch and covered stand provided in 2003.