| Marten Werkman |
| Marten Werkman | |
| G: | 14 jul 1891 |
| Oosterwijwerd | |
| O: | 8 nov 1954 |
| Assen | |
| Geert Werkman |
| Geert Werkman | |
| G: | 3 feb 1902 |
| Appingedam | |
| O: | 12 okt 1969 |
| Appingedam | |
| Hendrik Werkman |
| Hendrik Werkman | |
| G: | 5 apr 1907 |
| Appingedam | |
| O: | 25 nov 1960 |
| Groningen | |
| Kornelis Werkman |
| Kornelis Werkman | |
| G: | 1875 |
| Schildwolde | |
| O: | 2 sep 1941 |
| Groningen | |
| Martje Smit |
| Martje Smit | |
| G: | 11 apr 1872 |
| Bierum | |
| H: | 8 apr 1896 |
| Loppersum | |
| O: | 9 dec 1957 |
| Appingedam | |