| Roles | Competed in Olympic Games (non-medal events) | |
|---|---|---|
| Sex | Male | |
| Full name | William E.•Prosser | |
| Used name | William•Prosser | |
| Born | January 1886 in ?, Missouri |  USA |
| Affiliations | Smith Academy, St. Louis | |
| NOC | United States | USA |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1904 Summer Olympics | Athletics | USA |
William Prosser | |||
| 220 yards Hurdles, Boys (Olympic (non-medal)) | 3 | |||||
| Long Jump, Boys (Olympic (non-medal)) | 3 |
