In 2009, Colclough was named to the Patriots' 1960s All-Decade Team. His 17.7-yards average per reception ranks third in franchise history and his 39 touchdown catches are fourth on its all-time list.
Among receivers, Colclough was one of the premier deep threats in Patriots history. His ten receptions for touchdowns and 21.7 yards per reception in 1962 earned him a spot on the East Division All-Star team. His career highlights included a seven-reception, 142-yard, two-touchdown performance in a 45-17 romp over the Denver Broncos on Sept. 16, 1961 at Nickerson Field. Overall, he had 283 receptions for 5,001 yards and 39 touchdowns in his AFL career.
After retirement as a player, Colclough served as the head coach at Boston State College in the 1978 and 1979 campaigns. Under his tutelage, the Warriors compiled a 10–8 record in the New England Football Conference (currently Commonwealth Coast Football). In his first season, they were NEFC co-champions with a 6–2 record (6–3 overall).