| Name | Role | Place | Source | |
|---|---|---|---|---|
| Antonius Alexander M. de Block | Registered | 1830 | Amsterdam | Population register |
| Geertruida M. de Block | Registered | 1901 | Edam met Volendam | Population register |
| Josephus M. de Block | Registered | 1906 | Amsterdam | Workforce registration |
| Josephus M. de Block | Registered | 1906 | Amsterdam | Workforce registration |
| M de Block | Registered | 1894 | Breda | Population register |
| M de Block | Registered | 1894 | Breda | Population register |
| M. de Block | Travelers | 1963 | Rotterdam | Passenger registers |
| M. de Block | Registered | 's-Gravenhage | Individual Files | |
| M. de Block | Mention | 1939 | Nijmegen | Inschrijvingsregister Vierdaagse |
| Martha M. de Block | Partner | 1981 | Middelburg | Obituaries |
Find your ancestors and publish your family tree on Genealogy Online via https://www.genealogieonline.nl/en/