Complex sentence: From 1915 to 1918, Jimmy Corrigan of Clareen served as secretary to the Offaly County Board, GAA and was captain of the team which won Offaly's first Leinster Junior Hurling Championship and advanced to the 1915 All Ireland Final.
Split into simpler sentences: From 1915 to 1918, Jimmy Corrigan of Clareen served as secretary to the Offaly County Board, GAA. Corrigan was captain of the team which won Offaly's first Leinster Junior Hurling Championship and advanced to the 1915 All Ireland Final.