How old were they?

Kent Hadley

1B · Born December 17, 1934

Age in each season

1. 1958 (Athletics): 23 years, 105 days to 23 years, 288 days
2. 1959 (Athletics): 24 years, 105 days to 24 years, 288 days
3. 1960 (Yankees): 25 years, 106 days to 25 years, 289 days