John McKenzie
R · Born December 12, 1937
Age in each postseason series
- 1959 Semifinals (March 24, 1959), Blackhawks vs Canadiens 2–4: 21 years, 102 days
- 1960 Semifinals (March 23, 1960), Red Wings vs Maple Leafs 2–4: 22 years, 102 days
- 1964 Semifinals (March 26, 1964), Blackhawks vs Red Wings 3–4: 26 years, 105 days
- 1965 Semifinals (April 1, 1965), Blackhawks vs Red Wings 4–3: 27 years, 110 days
- 1965 Stanley Cup Final (April 17, 1965), Blackhawks vs Canadiens 3–4: 27 years, 126 days
- 1968 Quarterfinals (April 4, 1968), Bruins vs Canadiens 0–4: 30 years, 114 days
- 1969 Quarterfinals (April 2, 1969), Bruins vs Maple Leafs 4–0: 31 years, 111 days
- 1969 Semifinals (April 10, 1969), Bruins vs Canadiens 2–4: 31 years, 119 days
- 1970 Quarterfinals (April 8, 1970), Bruins vs Rangers 4–2: 32 years, 117 days
- 1970 Semifinals (April 19, 1970), Bruins vs Blackhawks 4–0: 32 years, 128 days
- 1970 Stanley Cup Final (May 3, 1970), Bruins vs Blues 4–0: 32 years, 142 days
- 1971 Quarterfinals (April 7, 1971), Bruins vs Canadiens 3–4: 33 years, 116 days
- 1972 Quarterfinals (April 5, 1972), Bruins vs Maple Leafs 4–1: 34 years, 115 days
- 1972 Semifinals (April 18, 1972), Bruins vs Blues 4–0: 34 years, 128 days
- 1972 Stanley Cup Final (April 30, 1972), Bruins vs Rangers 4–2: 34 years, 140 days
Age in each season
- 1958-59 (Blackhawks): 20 years, 293 days to 21 years, 139 days
- 1959-60 (Red Wings): 21 years, 293 days to 22 years, 140 days
- 1960-61 (Red Wings): 22 years, 294 days to 23 years, 139 days
- 1963-64 (Blackhawks): 25 years, 293 days to 26 years, 140 days
- 1964-65 (Blackhawks): 26 years, 294 days to 27 years, 139 days
- 1965-66 (Bruins, Rangers): 27 years, 293 days to 28 years, 139 days
- 1966-67 (Bruins): 28 years, 293 days to 29 years, 139 days
- 1967-68 (Bruins): 29 years, 293 days to 30 years, 140 days
- 1968-69 (Bruins): 30 years, 294 days to 31 years, 139 days
- 1969-70 (Bruins): 31 years, 293 days to 32 years, 139 days
- 1970-71 (Bruins): 32 years, 293 days to 33 years, 139 days
- 1971-72 (Bruins): 33 years, 293 days to 34 years, 140 days