| Grenz, Anna | Wilkens | 1899 | Woltmershausen |
| Grenz, Anna Marie | Weber | 1884 | Bremen |
| Grenz, Bernhard Johann | 1907 | Blumenthal | |
| Grenz, Franz Wilhelm | 1906 | Blumenthal | |
| Grenz, Heinrich | Wilkens | 1901 | Bremen |
| Grenz, Hermann Paul | 1909 | Blumenthal | |
| Grenz, Marie Anna | 1903 | Blumenthal | |
| Grenz, Wilhelm | Wilkens | 1897 | Bremen |