| Name | Role | Place | Source | |
|---|---|---|---|---|
| Henricus L J Hack | Registered | 1913 | Dinteloord | Population register |
| Johannes L P Hack | Registered | 1920 | Oud- en Nieuw Gastel | Population register |
| L Hack | Registered | Princenhage | Population register | |
| L Hack | Registered | 1887 | Breda | Population register |
| L Hack | Registered | Princenhage | Population register | |
| L. Hack | Travelers | 1949 | Rotterdam | Passenger registers |
| L. Hack | Travelers | 1958 | Rotterdam | Passenger registers |
| L. Hack | Travelers | 1901 | Rotterdam | Passenger registers |
| L. Hack | Registered | 1897 | Amsterdam | Family cards |
| L. Hack | Travelers | 1930 | New York | Passenger registers |
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