| Location | Source | Date | Page | Caption | Uniform | Type |
|---|---|---|---|---|---|---|
| 1909-11 T206 | 1909 | Gasper (sic), Cincinnati | Cincinnati NL | Posed pitching (artwork) | ||
| CLASSIC BASEBALL CARDS, Frank Slocum (1909+ T206) | 1987 | 206-7 | Gasper(sic), Cincinnati | Cincinnati NL | Posed pitching | |
| http://www.oldcardboard.com/t/t205/074.jpg | 2005 | H.L. Gaspar | Cincinnati NL | Head shot | ||
| NBL, Cooperstown | Spalding Guide | 1906 | 284 | Wausau - Wisconsin League | Wausau m.l. | Team |
| http://www.starsofthediamond.com/e254gaspar2.JPG | 1909-11 E254 Colgan's Chips | 1909-11 | Gaspar Cincinnati | Cincinnati NL (capless) | Head shot |