| Jacob Klasen Werkman (1777 - 1860) |
Pieter Writzers (1773 - 1858) |
| Trijntje Harms |
Aaltje Jacobs (1771 - 1850) |
| Harm Jacobs Werkman | Fokeltje Pieters |
| b. 23 Feb 1800, Warffum d. bur. occ. edu. rel. |
b. 4 Dec 1791, Den Andel d. 2 Jun 1828, Den Andel, Baflo bur. occ. edu. rel. |
| Spouses: 1, 2, 3, 4, 5 | Spouses: 1, 2 |
| Jacob Harms Werkman Aaltje Harms Werkman |