How old were they?

Murray Costello

C · Born February 24, 1934

Age in each postseason series

1. 1955 Semifinals (March 22, 1955), Bruins vs Canadiens 1–4: 21 years, 26 days
2. 1956 Semifinals (March 20, 1956), Red Wings vs Maple Leafs 4–1: 22 years, 25 days
3. 1956 Stanley Cup Final (March 31, 1956), Red Wings vs Canadiens 1–4: 22 years, 36 days

Age in each season

1. 1953-54 (Blackhawks): 19 years, 219 days to 20 years, 65 days
2. 1954-55 (Bruins): 20 years, 219 days to 21 years, 65 days
3. 1955-56 (Bruins, Red Wings): 21 years, 219 days to 22 years, 66 days
4. 1956-57 (Red Wings): 22 years, 220 days to 23 years, 65 days