How old were they?

Don Kessinger

SS · Born July 17, 1942

Age in each season

1. 1964 (Cubs): 21 years, 259 days to 22 years, 76 days
2. 1965 (Cubs): 22 years, 258 days to 23 years, 76 days
3. 1966 (Cubs): 23 years, 258 days to 24 years, 76 days
4. 1967 (Cubs): 24 years, 258 days to 25 years, 76 days
5. 1968 (Cubs): 25 years, 259 days to 26 years, 76 days
6. 1969 (Cubs): 26 years, 258 days to 27 years, 76 days
7. 1970 (Cubs): 27 years, 258 days to 28 years, 76 days
8. 1971 (Cubs): 28 years, 258 days to 29 years, 76 days
9. 1972 (Cubs): 29 years, 259 days to 30 years, 76 days
10. 1973 (Cubs): 30 years, 258 days to 31 years, 76 days
11. 1974 (Cubs): 31 years, 258 days to 32 years, 76 days
12. 1975 (Cubs): 32 years, 258 days to 33 years, 76 days
13. 1976 (Cardinals): 33 years, 259 days to 34 years, 76 days
14. 1977 (Cardinals, White Sox): 34 years, 258 days to 35 years, 76 days
15. 1978 (White Sox): 35 years, 258 days to 36 years, 76 days
16. 1979 (White Sox): 36 years, 258 days to 37 years, 76 days