John J Radley, a local school-master agreed to act as Honorary Secretary and another teacher, P Mullaney – then a member of the Leinster Council of the GAA – was appointed as his assistant.

Dooley, permission was given by the late William Mooney of Leixlip Castle, for the use of a field for matches and practice.

In 1939 a clubhouse was opened in the Main Street and was the centre of activities until the 1950s when a premises, now Tuthills Shop, was purchased on the Captains Hill and converted to a hall at a cost in excess of IR£600.

The Club’s Centenary was celebrated in 1987 and proved to be a gala occasion, the centrepiece being a special Banquet at which the guest of honour was the Association's former President, Dr. Michael Loftus.

16 May 2004 saw the culmination of years of endeavour by the members and the financial and moral support of the local community when the Minister of Finance and TD, Mr. Charlie McCreevy officiated at the opening the club’s new facilities.

Six years after their foundation St Mary's lost a replayed junior final to Paul Doyle's Maddenstown team.

Leixlip's team led by Tom Farrell and Ned Malone were defeated in the 1924 Kildare junior final by Roseberry, won the Intermediate championship in 1929 and played two Leader Cup finals in 1937, beating Carbury in a replay in Kilcock, and 1940, losing to Carbury in Rathcoffey.