Willem Kolthof
| Family | Pedigree | Reports |
| Willem Kolthof |
| b. 15 Apr 1821 |
| d. 25 Apr 1896 |
| Albert Kolthof |
| b. |
| d. 6 Mar 1843 |
| Willemtje Alberts |
| b. |
| d. |
| Family | Pedigree | Reports |
| Willem Kolthof |
| b. 15 Apr 1821 |
| d. 25 Apr 1896 |
| Albert Kolthof |
| b. |
| d. 6 Mar 1843 |
| Willemtje Alberts |
| b. |
| d. |