| Emil Paul Rosentreter | |
| B: | 14 Aug 1884 |
| Rejowiec, Wągrowiec County, Greater Poland Voivodeship, Poland | |
| D: | Bef 1994 |
|
| Johanna Pauline Rosentreter | |
| B: | 12 Feb 1863 |
| Brzeźno, Wągrowiec County, Greater Poland Voivodeship, Poland | |
| D: | Bef 1973 |
| Carl August Frost | |
| B: | 9 Aug 1860 |
| Łoskoń Stary, Poznań County, Greater Poland Voivodeship, Poland | |
| M: | 22 Nov 1885 |
| Rejowiec, Wągrowiec County, Greater Poland Voivodeship, Poland | |
| D: | Bef 1970 |