| Name | Role | Place | Source | |
|---|---|---|---|---|
| C Ackerman | Registered | 1910 | Teteringen | Population register |
| C Ackerman | Registered | 1910 | Princenhage | Population register |
| C. Ackerman | Travelers | 1956 | New York | Passenger registers |
| C. Ackerman | Travelers | 1952 | New York | Passenger registers |
| C. Ackerman | Travelers | 1956 | New York | Passenger registers |
| C. Ackerman | Travelers | 1969 | New York | Passenger registers |
| C. Ackerman | Travelers | 1967 | New York | Passenger registers |
| C. Ackerman | Travelers | 1969 | Rotterdam | Passenger registers |
| J C Ackerman | Registered | 1790 | Amsterdam | Notarial records |
| Lena C. Ackerman | Travelers | 1908 | Rotterdam | Passenger registers |
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