1889 - 
| Erwin Friedrich Koger 1922-1942 |
| Erwin Friedrich Koger | |
| *: | 6 Feb 1922 |
| Schallsingen, Baden, DE | |
| +: | 1 Okt 1942 |
Alma Koger 1928- |
| Alma Koger | |
| *: | 1 Jan 1928 |
| Schallsingen, Baden, DE | |
| Richard Osswald 1928- |
| Richard Osswald | |
| *: | 22 Nov 1928 |
| oo: | 1959 |
| Kurt Paul Koger 1929-2012 |
| Kurt Paul Koger | |
| *: | 22 Nov 1929 |
| +: | 2012 |
|
| Wilhelm Koger 1889- |
| Wilhelm Koger | |
| *: | 17 Feb 1889 |
| Obereggenen, Baden, DE | |
| Emma Barbara Osswald 1893- |
| Emma Barbara Osswald | |
| *: | 12 Dez 1893 |
| Schallsingen, Baden, DE | |
| oo: | 9 Dez 1919 |
| Obereggenen, Baden, DE | |
