Career
Allen made his QPR league debut against Newport County in December 1938 and was known as one of the best goalkeepers of his era. He initially played for the Corona Football Club in the Hanwell and District League where a QPR supporter spotted him and recommended him to the club He was given a trial with the reserve team at Clacton and the side lost 2-1.
Allen felt he had played poorly.
The club though felt he had promise but it was several months before he could be persuaded to play again. His next match was again with the reserves at West Ham on 12 March 1937.
Despite this it was still felt that Allen had done well and on 6 May 1938 he signed professional terms. Allen went on to play 183 league games for QPR, his career impacted by the war years where he was a prisoner of war (Prisoner Of War) in North Africa after being captured while on a commando raid in July 1941.
While in German hands, Allen played in many six-a-side games, typically as centre-forward to help gain a different insight to the game.
Allen was transferred to on 6 June 1950 for £11,000, a then world-record fee for a goalkeeper. With his signing, Jack Crompton, then the first-choice keeper at United, was reduced to a back-up role. Allen played his last game for on 4 October 1952, when Crompton managed to reclaim the number 1 jersey, along with promising, young "keeper Ray Wood.
Allen retired from football within five years.
A testimonial game for Allen took place between QPR and on 29 March 1954, raising in the region of £1,800 for his testimonial fund. He died on 3 April 1976, one month before what would have been his 57th birthday.