Friedrich Wilhelm Waschkau
- Yes, date unknown
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 | Gertruda Elisabeth Waschkau 1892-Yes, date unknown |
| Gertruda Elisabeth Waschkau | |
| B: | 1892 |
| Memel, (Pruisen) | |
| D: | Yes, date unknown |
 | Jan Marinus Dieleman 1890-1945 |
| Jan Marinus Dieleman | |
| B: | 16 May 1890 |
| Amersfoort, Utrecht, Nederland | |
| M: | 12 Feb 1919 |
| Rotterdam, Zuid-Holland, Nederland | |
| D: | 1945 |
| Rotterdam, Nederland | |
| Friedrich Wilhelm Waschkau -Yes, date unknown |
| Friedrich Wilhelm Waschkau | |
| D: | Yes, date unknown |