| Name | Role | Place | Source | |
|---|---|---|---|---|
| G. Birkhoff | Travelers | 1956 | New York | Passenger registers |
| G. Birkhoff | Travelers | 1932 | Rotterdam | Passenger registers |
| G. Birkhoff | Travelers | 1956 | Rotterdam | Passenger registers |
| G. Birkhoff | Registered | 1869 | 's-Gravenhage | Emigrants |
| G. Birkhoff | Registered | 1899 | Amsterdam | Family cards |
| G. Birkhoff | Travelers | 1956 | New York | Passenger registers |
| G. Birkhoff | Mention | 1935 | Nijmegen | Inschrijvingsregister Vierdaagse |
| G. Birkhoff Jr. | Travelers | 1910 | Rotterdam | Passenger registers |
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