Career
Born in Reading, Berkshire, McCrohan spent the majority of his career with before playing for Colchester United and Bristol Rovers. He later coached at Bristol Rovers, Aldershot, Fulham and Ipswich Town, both the latter two with Bobby Robson, and was assistant manager at Luton Town before moving to live in the United States. He was an assistant coach for the Detroit Express for the 1978 NASL season.
He was named head coach of the Minnesota Kicks on December 14, 1978.
He coached the team for the 1979 NASL season and first nine games of the 1980 NASL season. McCrohan died on 3 March 2015 in the West Country after a long illness.