The 1938 roster for the Athletics included George Caster at pitcher, Frankie Hayes at catcher, Lou Finney at first baseman, Dario Lodigiani at second baseman and Billy Werber at third baseman.
| NO. | NAME | POS | HEIGHT | WEIGHT | DOB | AGE | BIRTHPLACE | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 |  | W. Ambler | SS | 5'8" | 165 | 11/8/1915 | 22 | Abington, PA | |
| 2 | | B. Barna | OF | 6'2" | 210 | 3/2/1915 | 23 | Clarksburg, WV | |
| 3 | | I. Bartling | SS | 6'0" | 175 | 6/27/1914 | 24 | Bay City, MI | |
| 4 | | C. Berry | C | 6'0" | 185 | 10/18/1902 | 35 | Phillipsburg, NJ | |
| 5 | | E. Brucker | C | 5'11" | 175 | 5/6/1901 | 37 | Albany, NY | |
| 6 | | R. Buxton | P | 6'0" | 163 | 6/7/1911 | 27 | Weyburn, Canada | |
| 7 | | G. Caster | P | 6'1" | 180 | 8/4/1907 | 30 | Colton, CA | |
| 8 | | S. Chapman | OF | 6'0" | 190 | 4/11/1916 | 22 | Tiburon, CA | |
| 9 | | C. Dean | P | 5'11" | 181 | 8/24/1915 | 22 | Mount Airy, NC | |
| 10 | | P. Easterling | OF | 5'11" | 180 | 9/28/1905 | 32 | Reidsville, GA | |
| 11 | | N. Etten | 1B | 6'2" | 198 | 9/19/1913 | 24 | Spring Grove, IL | |
| 12 | | L. Finney | 1B | 6'0" | 180 | 8/13/1910 | 27 | Buffalo, AL | |
| 13 | | R. Gumpert | P | 6'3" | 205 | 1/23/1918 | 20 | Monocacy, PA | |
| 14 | | M. Haas | OF | 6'1" | 175 | 10/15/1903 | 34 | Montclair, NJ | |
| 15 | | G. Hasson | 1B | 6'0" | 197 | 7/20/1915 | 22 | Connellsville, PA | |
| 16 | | F. Hayes | C | 6'0" | 185 | 10/13/1914 | 23 | Jamesburg, NJ | |
| 17 | | B. Johnson | OF | 6'0" | 180 | 11/26/1905 | 32 | Pryor, OK | |
| 18 | | H. Kelley | P | 5'10" | 170 | 2/13/1906 | 32 | Parkin, AR | |
| 19 | | D. Lodigiani | 2B | 5'8" | 150 | 6/6/1916 | 22 | San Francisco, CA | |
| 20 | | W. Moses | OF | 5'10" | 160 | 10/8/1910 | 27 | Uvalda, GA | |
| 21 | | L. Nelson | P | 5'11" | 170 | 2/24/1905 | 33 | Sheldon, ND | |
| 22 | | S. Newsome | SS | 5'9" | 170 | 10/18/1910 | 27 | Phenix City, AL | |
| 23 | | A. Parker | SS | 6'0" | 180 | 5/17/1912 | 26 | Portsmouth, VA | |
| 24 | | R. Peters | SS | 5'11" | 170 | 12/14/1914 | 23 | Roanoke, VA | |
| 25 | | N. Potter | P | 5'11" | 180 | 8/23/1911 | 26 | Mount Morris, IL | |
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