[3] The club wanted Moore to sign a professional contract, but the suspension of competitive football due to the breakout of the Second World War in 1939.
[3] After the war, Moore received interest from First Division side Wolverhampton Wanderers, but returned to Brentford after Harry Curtis offered him a professional contract.
[3] Moore made his Brentford debut on 10 May 1947 in a 1–0 defeat against Bolton Wanderers in the First Division, the first full season following World War II.
[4] Behind Archie Macaulay in the pecking order,[3] Moore only made four appearances for the club and played his last game in a 3–0 defeat at Luton Town in the Second Division on 3 September 1947.
[3] On leaving Brentford, Moore turned down a move to Second Division side Leeds United and signed for Gloucester City in the Southern League,[3] where he made 52 appearances and scored 13 goals during the 1948–49 season[5] before joining fellow Southern League club Colchester United at the end of the season for a fee of £1,000.