| Sapp, Adele Diederike | Sapp Diedr. | 1890 | |
| Sapp, Gebke | Segelken | Sapp Joh. Diedr. | 1886 |
| Sapp, Heinrich Diedrich | 1924 | ||
| Sapp, Johann | 1943 | ||
| Sapp, Johann Carl Jacob | 1943 | ||
| Sapp, Johann Diedrich | 1894 | ||
| Sapp, Margarethe Elisabeth | Schröder | Sapp Johann Carl Jacob | 1937 |
| Sapp, Marie Metta | Sapp Johann Carl Jacob | 1910 | |
| Sapp, Meta | 1913 | ||
| Sapp, Metta | Peper | Sapp Diedrich | 1940 |
| Sapp, Werner | Sapp Herward | 1957 |