John O'Donoghue
P · Born October 7, 1939
Age in each season
- 1963 (Athletics): 23 years, 176 days to 23 years, 359 days
- 1964 (Athletics): 24 years, 177 days to 24 years, 360 days
- 1965 (Athletics): 25 years, 176 days to 25 years, 359 days
- 1966 (Indians): 26 years, 176 days to 26 years, 359 days
- 1967 (Indians): 27 years, 176 days to 27 years, 359 days
- 1968 (Orioles): 28 years, 177 days to 28 years, 360 days
- 1969 (Pilots): 29 years, 176 days to 29 years, 359 days
- 1970 (Brewers, Expos): 30 years, 176 days to 30 years, 359 days
- 1971 (Expos): 31 years, 176 days to 31 years, 359 days