Joe Cooper
D · Born December 14, 1914
Age in each postseason series
- 1937 Quarterfinals (March 23, 1937), Rangers vs Maple Leafs 2–0: 22 years, 99 days
- 1937 Semifinals (April 1, 1937), Rangers vs Maroons 2–0: 22 years, 108 days
- 1937 Stanley Cup Final (April 6, 1937), Rangers vs Red Wings 2–3: 22 years, 113 days
- 1938 Quarterfinals (March 22, 1938), Rangers vs Americans 1–2: 23 years, 98 days
- 1940 Quarterfinals (March 19, 1940), Blackhawks vs Maple Leafs 0–2: 25 years, 96 days
- 1941 Quarterfinals (March 20, 1941), Blackhawks vs Canadiens 2–1: 26 years, 96 days
- 1941 Semifinals (March 27, 1941), Blackhawks vs Red Wings 0–2: 26 years, 103 days
- 1942 Quarterfinals (March 22, 1942), Blackhawks vs Bruins 1–2: 27 years, 98 days
- 1944 Semifinals (March 21, 1944), Blackhawks vs Red Wings 4–1: 29 years, 98 days
- 1944 Stanley Cup Final (April 4, 1944), Blackhawks vs Canadiens 0–4: 29 years, 112 days
- 1946 Semifinals (March 19, 1946), Blackhawks vs Canadiens 0–4: 31 years, 95 days
Age in each season
- 1935-36 (Rangers): 20 years, 291 days to 21 years, 138 days
- 1936-37 (Rangers): 21 years, 292 days to 22 years, 137 days
- 1937-38 (Rangers): 22 years, 291 days to 23 years, 137 days
- 1938-39 (Blackhawks): 23 years, 291 days to 24 years, 137 days
- 1939-40 (Blackhawks): 24 years, 291 days to 25 years, 138 days
- 1940-41 (Blackhawks): 25 years, 292 days to 26 years, 137 days
- 1941-42 (Blackhawks): 26 years, 291 days to 27 years, 137 days
- 1943-44 (Blackhawks): 28 years, 291 days to 29 years, 138 days
- 1944-45 (Blackhawks): 29 years, 292 days to 30 years, 137 days
- 1945-46 (Blackhawks): 30 years, 291 days to 31 years, 137 days
- 1946-47 (Rangers): 31 years, 291 days to 32 years, 137 days