| Location | Source | Date | Page | Caption | Uniform | Type |
|---|---|---|---|---|---|---|
| The New York Times | Apr. 12, 1908 | New York Americans.... | New York AL | Team | ||
| 1909-11 T206 | 1909 | Niles, Boston Amer. | Boston AL | 2/3 length pose (artwork) | ||
| CLASSIC BASEBALL CARDS, Frank Slocum (1908 BC760) | 1987 | BC-5 | Niles, New York, A.L. | New York AL | Head shot | |
| 1911 Spalding Guide | http://memory.loc.gov/ammem/spaldinghtml/spaldinghome.html | 1911 | Image 109 | Niles | Cleveland AL | Head shot |