Pre World War I Deaths
| Rank | Name | Baseball Experience | Pos | Service | Cause of Death | Location | Date |
| Cptn. | Edward Bredell, Jr. | Amateur | Unknown | Confederate Army | Killed in Action | Virginia | Nov 16, 1864 |
| 1/Lt. | Thomas W. Custer | Amateur | P | US Army | Killed in Action | Little Bighorn, MT | Jun 25, 1876 |
| Pvt. | William Davis | Amateur | 3B | US Army | Killed in Action | Little Bighorn, MT | Jun 25, 1876 |
| Nav/Wr. | John H. Shillington | College - Notre Dame | SS | US Navy | Explosion | Cuba | Feb 15, 1898 |
| Seaman | Leon Bonner | Amateur | Assistant | US Navy | Explosion | Cuba | Feb 15, 1898 |
| GM/1C | Charles F.W. Eiermann | Amateur | Manager | US Navy | Explosion | Cuba | Feb 15, 1898 |
| OS | William H. Gorman | Amateur | 2B | US Navy | Explosion | Cuba | Feb 15, 1898 |
| LDS | Charles Hauck | Amateur | CF | US Navy | Explosion | Cuba | Feb 15, 1898 |
| LDS | William L. Hough | Amateur | 1B | US Navy | Explosion | Cuba | Feb 15, 1898 |
| F1c | William Lambert | Amateur | P | US Navy | Explosion | Cuba | Feb 15, 1898 |
| AP/2c | Benjamin L. Marsden | Amateur | C | US Navy | Explosion | Cuba | Feb 15, 1898 |
| LDS | John Merz | Amateur | SS | US Navy | Explosion | Cuba | Feb 15, 1898 |
| Fifer | C.H. Newton | Amateur | 3B | US Marine Corps | Explosion | Cuba | Feb 15, 1898 |
| LDS | William H. Tinsman | Amateur | LF | US Navy | Explosion | Cuba | Feb 15, 1898 |
| Leonard Weikart | Minor League | C | US Army | Illness | Cuba | Aug 1, 1898 | |
| Pvt. | William E. "Bill" Stearns | Major League | P | US Army | Illness | Washington, DC | Dec 30, 1898 |
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