Northwich, Cheshire born inside forward Pat Finnerhan began his football career with Winnington in 1891 before joining hometown Second Division club Northwich Victoria in 1892, making his Football League debut at Grimsby Town that September. When Northwich lost their Football League status in 1894, and Finnerhan joined Ardwick, renamed Manchester City a year later, in the close season after 16 goals in 54 appearances for Victoria, including a hat-trick in an FA Cup victory over Flint in October 1892.
He was an ever present for Ardwick in 1894-95, and their leading goalscorer with 15 goals, remaining ever present the following season as the re-named Citizens finished runners up in the Second Division and failed to get promotion in the Test Match series. He was signed by First Division Liverpool for £150 in May 1897 after 27 goals in 89 appearances for Manchester City, but he scored just one goal for the first team, a winner in the last minute against Wolves at Anfield on 20th November 1897 in 8 appearances for The Reds before joining Southern League Bristol City in May 1898. After a season with The Robins he returned to by now Cheshire League club Northwich Victoria in the summer of 1899, where he played until his retirement.