| Peter Stiffler 1843-1909, Freedom Twp, Blair Co, Pa | Janet L. Gray |
| J. Roy Stiffler and Rosa May Stutzman, Johnstown, Cambria Co, Pa | Brian L. Cartwright |
| Unidentified - Do you know these Stifflers? | Janet L. Gray |
| Fred C. Stiffler & Florence Maud Anderson, Norwalk, Iowa | Janet L. Gray |