How old were they?

Mule Haas

CF · Born October 15, 1903

Age in each postseason series

1. 1929 World Series (October 8, 1929), Athletics vs Cubs 4–1: 25 years, 358 days
2. 1930 World Series (October 1, 1930), Athletics vs Cardinals 4–2: 26 years, 351 days
3. 1931 World Series (October 1, 1931), Athletics vs Cardinals 3–4: 27 years, 351 days

Age in each season

1. 1925 (Pirates): 21 years, 168 days to 21 years, 351 days
2. 1928 (Athletics): 24 years, 169 days to 24 years, 352 days
3. 1929 (Athletics): 25 years, 168 days to 25 years, 351 days
4. 1930 (Athletics): 26 years, 168 days to 26 years, 351 days
5. 1931 (Athletics): 27 years, 168 days to 27 years, 351 days
6. 1932 (Athletics): 28 years, 169 days to 28 years, 352 days
7. 1933 (White Sox): 29 years, 168 days to 29 years, 351 days
8. 1934 (White Sox): 30 years, 168 days to 30 years, 351 days
9. 1935 (White Sox): 31 years, 168 days to 31 years, 351 days
10. 1936 (White Sox): 32 years, 169 days to 32 years, 352 days
11. 1937 (White Sox): 33 years, 168 days to 33 years, 351 days
12. 1938 (Athletics): 34 years, 168 days to 34 years, 351 days