| Name | Role | Place | Source | |
|---|---|---|---|---|
| J.M. Con | Travelers | 1955 | New York | Passenger registers |
| J.M. Con | Travelers | 1960 | New York | Passenger registers |
| J.M. Con | Registered | 's-Gravenhage | Individual Files | |
| J.M. Con | Travelers | 1965 | New York | Passenger registers |
| J.M. Con | Travelers | 1963 | Rotterdam | Passenger registers |
| J.M. Con | Registered | 1904 | Amsterdam | Family cards |
| J.M. Con | Travelers | 1966 | Rotterdam | Passenger registers |
| J.M. Con p/a Lezer | Owner | 's-Gravenhage | Verkaufsbücher |
The term J.M. Con appears in user-added comments on documents 1
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