| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jan K. de Grooth | Registered | 1873 | Utrecht | Register of staff |
| Jan K. de Grooth | Staff member | 1873 | Utrecht | Register of staff |
| Jan K. de Grooth | Staff member | 1873 | Utrecht | Register of staff |
| Jan K. de Grooth | Registered | 1873 | Utrecht | Register of staff |
| K. Martha J. de Grooth | Deceased | 1859 | Op zee | Civil registration deaths |
| K. de Grooth | Travelers | 1952 | Passenger registers | |
| K. de Grooth | Travelers | 1952 | Rotterdam | Passenger registers |
| K. de Grooth | Schepeling | Studbooks | ||
| K. de Grooth | Registered | 1893 | Amsterdam | Family cards |
| K. de Grooth | Registered | 's-Gravenhage | Personnel File |
Find your ancestors and publish your family tree on Genealogy Online via https://www.genealogieonline.nl/en/