| Potthast, Alex. Hermann Hinr. | Barkowski | 1904 | Bremen 1 |
| Potthast, Amalie | Ratmeyer | 1889 | Obervieland |
| Potthast, Anna Henny Frieda Karoline Auguste | Mohmeyer | 1905 | Bremen 1 |
| Potthast, Auguste Anna Margarete | Mohmeyer | 1912 | Bremen 1 |
| Potthast, Carl Alex. Hermann Heinrich | Barkowski | 1897 | Bremen |
| Potthast, Clara Luise | Ratmeyer | 1896 | Arsten |
| Potthast, Elise Dorothee | Harms | 1905 | Bremen 1 |
| Potthast, Emma Catharine Bertha | Barkowski | 1902 | Bremen 1 |
| Potthast, Friedrich | Ratmeyer | 1891 | Arsten |
| Potthast, Friedrich August | 1910 | Blumenthal | |
| Potthast, Friedrich Karl | 1909 | Blumenthal | |
| Potthast, Hermann August | Ratmeyer | 1887 | Obervieland |
| Potthast, Johann | Siemer | 1883 | Obervieland |
| Potthast, Johann Friedr. Wilh. | Barkowski | 1896 | Bremen |
| Potthast, Johanne Karoline Margarete | Mohmeyer | 1906 | Bremen 4 (Walle) |
| Potthast, Johanne Karoline Margarete | Mohmeyer | 1906 | Bremen 1 |
| Potthast, Margarethe Johanne Adelh. | Barkowski | 1898 | Bremen |
| Potthast, Wilhelm Ludwig Karl | Barkowski | 1906 | Bremen 1 |