1872 - 
1900-1906
| Hedwig Kosthaus | |
| *: | 14 Mrz 1900 |
| D-Bochum-Stiepel | |
| +: | 10 Jul 1906 |
| D-Bochum-Stiepel | |
1903-1980
| Friedrich Heinrich Kosthaus | |
| *: | 20 Apr 1903 |
| D-Bochum-Stiepel | |
| +: | 5 Mrz 1980 |
| D-Bochum-Stiepel | |
1905-
| Emilie Elisabeth Gustrau | |
| *: | 12 Nov 1905 |
| oo: | 6 Apr 1935 |
| D-Bochum-Stiepel | |
1907-1991
| Elli Kosthaus | |
| *: | 16 Mrz 1907 |
| D-Bochum-Stiepel | |
| +: | 2 Jan 1991 |
| D-Duesseldorf | |
1905-1963
| Ernst Hehmann | |
| *: | 25 Aug 1905 |
| D-Bochum-Stiepel | |
| oo: | 12 Mai 1928 |
| D-Bochum-Stiepel | |
| +: | 3 Jan 1963 |
| D-Bochum | |
|
1872-
| August Heinrich Kosthaus | |
| *: | 25 Okt 1872 |
| D-Bochum-Stiepel | |
1870-1937
| Caroline Zur Oven | |
| *: | 11 Mrz 1870 |
| D-Bochum-Stiepel | |
| oo: | 2 Apr 1898 |
| D-Bochum-Stiepel | |
| +: | 20 Nov 1937 |
| D-Bochum-Stiepel | |
