1893 - 1974 (80 Jahre)
1913-
| Liselotte Wiethoff | |
| *: | 10 Nov 1913 |
| D-Bochum | |
1916-
| Karl Heinz Wiethoff | |
| *: | 17 Apr 1916 |
| D-Dortmund-Wellinghofen | |
|
1893-1974
| Louise Pauline Korfmann | |
| *: | 9 Okt 1893 |
| D-Bochum-Stiepel | |
| +: | 23 Jun 1974 |
| D-Gladbeck | |
| Diedrich Heinrich Wiethoff | |
| *: | 12 Mai 1889 |
| D-Bochum | |
| oo: | 10 Mai 1913 |
| D-Bochum-Stiepel | |
