Jacob Klazes van der Schaaf
| Patroniem: | Klazes | |
| Sex: | Male | |
| Father: | Klaas Sierks van der Schaaff | |
| Mother: | Jetske Sakes Postma | |
| Birth: | 27 Jun 1856 | Kimswerd, FR, NL |
| Death: | 18 Feb 1918 | Siegerswoude, FR, NL |
| Occupation: | Landbouwer, Koemelker | |
| Patroniem: | Klazes | |
| Sex: | Male | |
| Father: | Klaas Sierks van der Schaaff | |
| Mother: | Jetske Sakes Postma | |
| Birth: | 27 Jun 1856 | Kimswerd, FR, NL |
| Death: | 18 Feb 1918 | Siegerswoude, FR, NL |
| Occupation: | Landbouwer, Koemelker | |