
| Adrianus Leo Helmer | |
| G: | 13 dec 1890 |
| Rotterdam,ZH,NLD | |
| O: | 23 aug 1954 |
| Rotterdam,ZH,NLD | |
| Jozina Moeliker | |
| G: | 10 dec 1898 |
| Rotterdam,ZH,NLD | |
| H: | 6 aug 1919 |
| Rotterdam,ZH,NLD | |
| O: | Ja, datum echter onbekend |
| Fredrik Hendrik Helmer | |
| G: | 4 okt 1845 |
| Rotterdam,ZH,NLD | |
| O: | 6 mei 1913 |
| Rotterdam,ZH,NLD | |
| Henrica Aleidis van den Hoven | |
| G: | 14 jul 1853 |
| Buren,FR,NLD | |
| H: | 25 sep 1872 |
| Rotterdam,ZH,NLD | |
| O: | 28 mei 1904 |
| Rotterdam,ZH,NLD | |