| Potthoff, Heinr. | 1898 | ||
| Potthoff, Heinrich Friedrich | 1962 | ||
| Potthoff, Heinrich Wilhelm Hermann | 1960 | ||
| Potthoff, Irmlind | 1959 | ||
| Potthoff, Johann Anton Conrad | 1918 | ||
| Potthoff, Johann Hermann | 1958 | ||
| Potthoff, Jürgen Stephan | Potthoff Franz | 1953 | |
| Potthoff, Karoline Rudolfine Auguste | Heissenberg | Potthoff Johann Hermann | 1961 |
| Potthoff, Maria Hepkea | Thiele | Potthoff Heinrich Friedrich | 1965 |