1896-1973
| Fransisca Emilie Wilhelmina BELTRAMI | |
| B: | 23-01-1896 |
| Groningen, , Groningen, Netherlands | |
| D: | 28-11-1973 |
1899-1972
| Antonius Joannes BELTRAMI | |
| B: | 23-04-1899 |
| Groningen, , Groningen, Netherlands | |
| D: | 10-02-1972 |
| Berlin, , , Germany | |
|
1873-1909
| Froubina Hillegonda HUISMAN | |
| B: | 20-11-1873 |
| Woltersum, , Groningen, Netherlands | |
| D: | 16-04-1909 |
| Groningen, , Groningen, Netherlands | |
1869-1955
| Frederikus Jacobus BELTRAMI | |
| B: | 31-03-1869 |
| Leeuwarden, , Friesland, Netherlands | |
| M: | 29-08-1895 |
| Ten Boer, , Groningen, Netherlands | |
| D: | 08-10-1955 |
| Groningen, , Groningen, Netherlands | |