| Kornelis Jans Wetzema (1804 - 1866) |
Derk Jans Stemmer |
| Geertruid Jacobs Smit (~1802 - 1866) |
Fennechien Harm Koops |
| Jacob Wetzema | Geesien Stemmer |
| b. 17 Jan 1840, Obergum, Winsum d. 3 Nov 1881, Ulrum bur. occ. edu. rel. |
b. 7 Jul 1844, Wildervank, Groningen, Netherlands d. bur. occ. edu. rel. |
| Cornelis Wetzema |