| Family Tree Collection | Main index A-Z | Total index | Names | Index places | Alexander Duparc Collection | 
| Family page | 
| 
Benedictus ( Baruch ) Kolthof(f), son of Abraham Kolthof(f) and Helena Esther Lansberg
 to: Anna Regina Bischot  | 
| 1) Daniel Kolthoff | 
| 
2) Emile William Kolthoff
 to:
 Marjoleine Elda Wilhelmina Van den Hul, daughter of Gerrit Van den Hul and Ida Cornelis Van As  |