In November 1948, Morrison moved to Preston North End. During a highly successful tenure, he made 262 appearances, scoring 70 goals, including one in the 1954 FA Cup Final, when Preston lost out to West Bromwich Albion. Sir Tom Finney said of Morrison, "He was a very, very nice fellow who was quite unassuming. He was very popular with the fans and a very good player. Angus was a big strong lad, he was about 6ft, but he was quite quick and a good goalscorer. He was a very good player to have in your side."
