| Name | Role | Place | Source | |
|---|---|---|---|---|
| Anton M. Kupper | Registered | 1890 | Nijmegen | Population register |
| Anton M. Küpper | Registered | 1900 | Nijmegen | Population register |
| Anton M. Küpper | Registered | 1900 | Nijmegen | Population register |
| Fehmia M. Küpper | Registered | 1900 | Nijmegen | Population register |
| M. Kupper | Travelers | 1955 | New York | Passenger registers |
| M. Kupper | Travelers | 1961 | New York | Passenger registers |
| M. Küpper | Registered | 1902 | Amsterdam | Family cards |
| M. Küpper | Registered | 1903 | Amsterdam | Family cards |
| M. Küpper | Travelers | 1954 | Rotterdam | Passenger registers |
Find your ancestors and publish your family tree on Genealogy Online via https://www.genealogieonline.nl/en/