| Jacob Lehmer (1758 - 1836) |
Frederick G. Younkin (1763 - 1843) |
| Catherine (1764 - 1835) |
Catherine Patton (1771 - 1854) |
| Henry Lehmer | Catharine Younkin |
| b. 1798 d. 1870 bur. occ. edu. rel. |
b. 16 Apr 1803 d. 1829 bur. occ. edu. rel. |
| Derrick Lehmer Marian Catharine Lehmer Rebecca Lehmer Mary Ann Lehmer |