| Name | Role | Place | Source | |
|---|---|---|---|---|
| C. Geiger | Travelers | 1956 | Rotterdam | Passenger registers |
| C. Geiger | Travelers | 1955 | New York | Passenger registers |
| C. Geiger | Travelers | 1952 | Rotterdam | Passenger registers |
| C. Geiger | Travelers | 1956 | New York | Passenger registers |
| C. Geiger | Civil servant | Studbooks | ||
| C. Geiger | Travelers | 1901 | Rotterdam | Passenger registers |
| C. Rohrmoser-Geiger | Registered | 's-Gravenhage, Heemstede | Management file | |
| C. Rohrmoser-Geiger | Registered | 's-Gravenhage, Heemstede | Management file | |
| C. Rohrmoser-Geiger | Registered | 's-Gravenhage, Heemstede | Management file | |
| C. de Ligt geb. Geiger | Civil servant | Studbooks |
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