How old were they?

Jackie Hernandez

SS · Born September 11, 1940

Age in each postseason series

1. 1971 NLCS (October 2, 1971), Pirates vs Giants 3–1: 31 years, 21 days
2. 1971 World Series (October 9, 1971), Pirates vs Orioles 4–3: 31 years, 28 days

Age in each season

1. 1965 (Angels): 24 years, 202 days to 25 years, 20 days
2. 1966 (Angels): 25 years, 202 days to 26 years, 20 days
3. 1967 (Twins): 26 years, 202 days to 27 years, 20 days
4. 1968 (Twins): 27 years, 203 days to 28 years, 20 days
5. 1969 (Royals): 28 years, 202 days to 29 years, 20 days
6. 1970 (Royals): 29 years, 202 days to 30 years, 20 days
7. 1971 (Pirates): 30 years, 202 days to 31 years, 20 days
8. 1972 (Pirates): 31 years, 203 days to 32 years, 20 days
9. 1973 (Pirates): 32 years, 202 days to 33 years, 20 days