+———Elias A. Timmer      |  +———Oliver Fred Timmer (1883 – 1966)  |   |      |   +———Ida V. Slifer  |      Lavon Timmer   |              |       +———Frederick Stukenberg (1810 Germany – 29 May 1867)  |       |  |   +———Dennis Lewis Stukenberg (19 Dec 1852 Adeline, Ogle Co, IL – 22 Feb 1928 Adeline, Ogle Co, IL)  |   |   |      |   |   +———Rebecca A. Schafer ( – 14 Dec 1870)  |   |  +———Irene Stukenberg (1882 – 1969)      |          +———Lena Martin (1849 Germany – 7 Jul 1920)