Following a private trial game at St James' Park on Tuesday 4th May 1965, Exeter City manager Ellis Stuttard signed seven players on amateur forms, They included 16 year old goalkeeper Allen Trump from Exeter.

Allen Trump had played a few games for City in the Western League in the following seasons, before the club disbanded the reserve team at the end of the 1966/67 season.

He returned to play for City Reserves against Porthleven on the 5th of October 1974, after being given permission by his club Budleigh Salterton to play. He played in goal against Bodmin, in a South Western League game for Exeter City on the 20/1/1975.

He moved into magazine publishing, forming LCD Publishing with former Exeter and Arsenal star, Steve Williams, concentrating initially on football titles. He also became a Director at Exeter City in the 1990's, being appointed on the 26 June 1991 and resigning on the 9 April 1993.