[4] Walker attended Paisley Grammar School and his two older brothers, Willie and Jim, also played football for Queen's Park.
[6] In March 1917, during the First World War, Walker was called up to serve with the Royal Field Artillery.
[2] Holding the rank of bombardier, he was part of the Army of Occupation and was stationed in Cologne.
[2] After retiring from football due to a broken leg, Walker became an income tax inspector.
This biographical article related to association football in Scotland, about a forward born in the 1890s, is a stub.