| Gruel, August | Iwersen | 1876 | Walle |
| Gruel, August Ernst Karl Wolfgang | Grossbach | 1911 | Bremen 1 |
| Gruel, Gertrud Aug. Ges. | Wienberg | 1905 | Bremen 1 |
| Gruel, Hela Marie | Bock | 1902 | Bremen 1 |
| Gruel, Henriette Sophie | Iwersen | 1890 | Bremen |
| Gruel, Hildegard Anna Kath. | Darr | 1904 | Bremen 1 |
| Gruel, Johann Carl August | Iwersen | 1893 | Bremen |
| Gruel, Johanne Karoline Auguste | Iwersen | 1884 | Walle |
| Gruel, Johannes Friedrich | Iwersen | 1878 | Walle |
| Gruel, Karla Dora Marie | Wienberg | 1905 | Bremen 1 |
| Gruel, KäthchenAnna Adelh. | Wienberg | 1903 | Bremen 1 |
| Gruel, Klara Juliane | Bock | 1905 | Bremen 1 |
| Gruel, Lloyd Werner | Bock | 1908 | Bremen 1 |
| Gruel, Marie Katharine | Iwersen | 1882 | Walle |
| Gruel, Minna Caroline Auguste | Iwersen | 1880 | Walle |
| Gruel, Wilhelm Johann Ludwig Theodor | Iwersen | 1887 | Walle |