Goalkeeper Pat Tierney spent two seasons with Exeter City during the late 1930s.  He joined the club from Vale of Clyde and left for Crystal Palace.

Pat had been playing for Scottish junior club Vale of Clyde prior to signing for Exeter City in the summer of 1936. Initially second choice behind Arthur Chesters, he eventually made his league debut against Watford in November 1936. Playing in seven consecutive games, he later had a run of nine matches at the end of the season. 

First-choice at the start of 1937/38, Pat appeared in the opening thirteen games of the season before giving way to Harry Church. Not figuring for City's first-team again, he moved to Crystal Palace for the 1938/39 season although he never played a league match for his new club.