| Forthmann, Anna | Voßmeyer | Forthmann Theodor Christian | 1964 |
| Forthmann, Anna Magdalena | Kunst | Forthmann Johannes Peter | 1951 |
| Forthmann, Anna Maria Ilsabe | Timmermann | Forthmann Johann Heinrich | 1917 |
| Forthmann, Diedrich Poppo | 1929 | ||
| Forthmann, Doroth. | Nullmeyer | Forthmann Herm. | 1887 |
| Förthmann, Fritz Heinrich Carl | 1955 | ||
| Forthmann, Ilsabetha | Hägermann | Forthmann Johann Christian Hermann | 1965 |
| Forthmann, Joh. Heinr. | 1897 | ||
| Forthmann, Johann Christian Hermann | 1943 | ||
| Forthmann, Johann Hermann Heinrich | 1943 | ||
| Forthmann, Johannes Peter | 1938 | ||
| Forthmann, Meta Magdalene | Kunst | Forthmann Johann Hermann Heinrich | 1943 |
| Forthmann, Metta Dorothee Gerhardine | Schäfer | Forthmann Johann Ludwig | 1941 |
| Forthmann, Siegfried Johann | 1959 | ||
| Forthmann, Theodor Christian | 1922 | ||
| Förthmann, Totgeburt | Förthmann Friedrich Wilhelm | 1973 | |
| Forthmann, Walter Herm. Christ.n | Forthmann Joh. Herm. Heinr. | 1892 | |
| Forthmann, Waltraud | Forthmann Alfred | 1947 | |
| Förthmann, Wilfried | 1975 | ||
| Förthmann, Wilhelm Heinrich Carl | 1958 |