| Name | Role | Place | Source | |
|---|---|---|---|---|
| John Barent Coenraat Scheffer | Groom | 1756 | Rotterdam | Church records marriages |
| John Christn Theods Scheffer | Registered | 1819 | Amsterdam | Population register |
| John Jacobus Christoffel Scheffer | Registered | 1922 | Population register | |
| John Louis Scheffer | Witness | 1841 | Paramaribo | Civil registration births |
| John Scheffer | Travelers | 1930 | Rotterdam | Passenger registers |
| John Scheffer | Travelers | 1930 | New York | Passenger registers |
| John Scheffer | Travelers | 1916 | New York | Passenger registers |
| John Scheffer | Travelers | 1931 | Rotterdam | Passenger registers |
| John Scheffer | Registered | 1822 | Den Helder | Notarial records |
| Martinus Petrus Jose John Johannes Scheffer | Registered | 1846 | Zaandam | Population register |
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