He played at right-back for Johnstone, Preston North End, Bristol Rovers, and Burslem Port Vale.
He joined Bristol Rovers in 1901, as the club posted a ninth-place finish in the Southern League in 1901–02.
In his five seasons at the Eastville Stadium, Dunn played 155 matches, scoring one goal.
He signed with Burslem Port Vale of the Football League Second Division in August 1906.
[1] He played 27 league and four FA Cup games, before losing his first-team spot in March 1907.