|  | van Dissel b. d.
|  |  |  |  |  | Barthold Jacob Suermondt b.1810 d.1878
|  |  | Gualtherus Gustaaf Suermondt b.1856 d.1916 |  | Geertruid Cornelia Kolff b.1814 d.1894
|  | stiefdochter Suermondt b. d. |  |  | Matthijs Koenen b. d.
|  |  | Helena Sophia Caroline Koenen b.1864 Soerabaija, IDN d.1933 's-Gravenhage, ZH, NLD |  | Johanna Lautenslager b.1843 Joure, FR, NLD d.1928 's-Gravenhage, ZH, NLD |