Otto Theodor Koehler 1915- |
| Otto Theodor Koehler | |
| *: | 31 Dez 1915 |
| D-Bochum-Stiepel | |
| Georg Koehler 1879- |
| Georg Koehler | |
| *: | 10 Sep 1879 |
| D-Berleburg (Kreis Wittgenstein) | |
Emilie Mathilde Berneiser 1880-1959 |
| Emilie Mathilde Berneiser | |
| *: | 8 Mrz 1880 |
| D-Bochum-Stiepel | |
| oo: | 10 Nov 1901 |
| D-Bochum-Stiepel | |
| +: | 18 Feb 1959 |
| D-Bochum | |
| Ludwig Johann Koehler 1889- |
| Ludwig Johann Koehler | |
| *: | 24 Mrz 1889 |
| D-Bochum | |
| Johanna Caroline Diedrichs | |
| *: | 3 Jan 1890 |
| D-Bochum-Weitmar | |
| oo: | 7 Mai 1913 |
| D-Bochum-Stiepel | |
