Walker attended
Paisley Grammar School and his two older brothers,
Willie and
Jim, also played football for
Queen's Park. After leaving school, he took up a job as a
civil servant. In March 1917, during the
First World War, Walker was called up to serve with the
Royal Field Artillery. Holding the rank of
bombardier, he was part of the
Army of Occupation and was stationed in
Cologne. After retiring from football due to a broken leg, Walker became an
income tax inspector. ==References==