Career
Born in Colchester, Cullum signed for hometown club Colchester United from amateur football as a youth. He made his debut for Colchester aged 20 on 26 March 1951, Colchester"s first season in the Football League. He scored on his debut in the 4–1 defeat to Torquay United.
This was to be his only goal in professional football.
He made one further appearance for Colchester on 23 January 1954 in a 3–0 away defeat to Aldershot. He played for Sittingbourne after leaving Colchester.