The outbreak of World War II then halted his progress, as the Football League was suspended.
He remained with the club while the Football League was suspended during wartime, turning out in regional action.
Although the Football League was suspended for the duration of hostilities, Birmingham competed in regional league and cup matches.
There was an average of 6,000 in attendance at home games, before the Football League was suspended as a result of the Second World War.
Unfortunately for Oliver, the Football League was suspended in 1939 due to the Second World War, and did not resume until 1946.
The Football League was suspended in 1939 due to the Second World War.
Even though the Swiss Football League was not suspended, some 5,800 footballers - out of a total of 8,500 - signed up to fight.
The outbreak of World War II then meant that the Football League was suspended for seven whole seasons.
The Football League was suspended due to World War II.
The Football League was suspended after the game on 2 September 1939 when war was declared.