|  |  | Matthijs Koenen b. d.
|  | August Johan Koenen b.1862 Soerabaija, IDN d.1907 's-Gravenhage, ZH, NLD |  |  | Hendricus (Joannes Lautenslager b.1813 Utrecht, UT, NLD d.1862 Malang, IDN |
|  |  | Johanna Lautenslager b.1843 Joure, FR, NLD d.1928 's-Gravenhage, ZH, NLD |  | Roelofina (Roelfje Roelofsma b.1818 Sappemeer, GR, NLD d. |
| J. J. Koenen b. d. |  |
|  |  | S Lamminga b. d.
|  | Jeltje Lamminga b. d.
|  |  | F Beitschat b. d.1902 Oosterbeek, GE, NLD