| Fokke Janssen Mammenga (1837 - 1914) |
|
| Wilhelmine George Gesine Hermine Rosenberg (1840 - ) |
| Herman Heinrich Mammenga | Ella M |
 b. Aug 27, 1869d. 1960, Ogle Co IL bur. Ebenezer Reformed Church occ. bp. |
b. 1879 d. 1950, Ogle Co IL bur. Ebenezer Reformed Church occ. bp. |