How old were they?

Shoeless Joe Jackson

RF · Born July 16, 1887

Age in each postseason series

1. 1917 World Series (October 6, 1917), White Sox vs Giants 4–2: 30 years, 82 days
2. 1919 World Series (October 1, 1919), White Sox vs Reds 3–5: 32 years, 77 days

Age in each season

1. 1908 (Athletics): 20 years, 260 days to 21 years, 77 days
2. 1909 (Athletics): 21 years, 259 days to 22 years, 77 days
3. 1910 (Naps): 22 years, 259 days to 23 years, 77 days
4. 1911 (Naps): 23 years, 259 days to 24 years, 77 days
5. 1912 (Naps): 24 years, 260 days to 25 years, 77 days
6. 1913 (Naps): 25 years, 259 days to 26 years, 77 days
7. 1914 (Naps): 26 years, 259 days to 27 years, 77 days
8. 1915 (Indians, White Sox): 27 years, 259 days to 28 years, 77 days
9. 1916 (White Sox): 28 years, 260 days to 29 years, 77 days
10. 1917 (White Sox): 29 years, 259 days to 30 years, 77 days
11. 1918 (White Sox): 30 years, 259 days to 31 years, 77 days
12. 1919 (White Sox): 31 years, 259 days to 32 years, 77 days
13. 1920 (White Sox): 32 years, 260 days to 33 years, 77 days