Keith Gersbach (1924-2015) nicknamed "The Colonel" was an Australian rugby league footballer who played in the 1940s.
Gersbach grew up in the Penrith district and played his junior rugby league with St Mary's.
Gersbach then served in World War 2 at New Guinea and returned home after suffering from malaria.
Gersbach spent two seasons at Canterbury and mainly played in reserve grade before joining newly admitted side Parramatta in 1947.
Gersbach played in Parramatta's first ever game on 12 April 1947 against Newtown at Cumberland Oval with the match finishing in a 34-12 defeat.