He is the son of Sam Gallagher, who also represented Norwood.
Outside of football, Gallagher worked as a chartered accountant.
After retiring as a player, he served as a League director and club chairman of Norwood from 1996 to 1999.
Gallagher became a member of the South Australian Football Commission in 2000 and currently serves as the Commission's Deputy Chairman.
This Australian rules football biography of a person born in the 1950s is a stub.