| Name | Role | Place | Source | |
|---|---|---|---|---|
| B. Lens | Travelers | 1959 | New York | Passenger registers |
| B. Lens | Registered | Amsterdam | Family cards | |
| B. Lens | Travelers | 1965 | New York | Passenger registers |
| B. Lens | Travelers | 1961 | Montreal | Passenger registers |
| B. Lens | Travelers | 1962 | Rotterdam | Passenger registers |
| B. Lens | Travelers | 1965 | New York | Passenger registers |
| B. Lens | Travelers | 1960 | Rotterdam | Passenger registers |
| B. Lens | Travelers | 1965 | Rotterdam | Passenger registers |
| B. Lens | Laatstelijk gehuwd | 1942 | Oswiecim | Dutch Government Gazette |
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