[3] Despite being described as "a player of great promise", an abundance of right halves at the club saw Horne right down the pecking order and he failed to make a first team appearance for the Tangerines.
[3] Horne signed for Second Division club Brentford in 1950 and made his debut in a 0–0 draw with Leicester City at Griffin Park on 18 November 1950.
[5] Horne scored his only league goal for the club in a 3–3 draw with Luton Town on 1 March 1952, after being named in the team as a centre forward.
[5] Horne and teammates Billy Sperrin, George Bristow and Reg Newton were rewarded for their loyalty to the Bees with a testimonial against an International Managers XI in 1956.
[3] Horne held youth coaching positions at Queens Park Rangers and Brentford and also undertook scouting work for the latter club.