Genealogie familie Willemsen
Genealogie van o.a. de Familie Willemsen, Dicks, van Londen, Holkamp, versijp
Gezin: Albertus Roelofs Dercksen / Henrica Krechting (F1718133195)
getr. 26 mei 1720 | Roelof Dercksen (1650- ) 
|
 | Theodora Roelofs Dercksen (1675- )  |
| Jantjen Roelofs Dercksen (1678- ) |
| Lucas Roelofs Dercksen (1681- ) |
| Gerritjen Roelofs Dercksen (1685- ) |
| Albertus Roelofs Dercksen (1688- )
|
| Henrica Krechting (1699- ) |
| Rudolf Derksen (1721- ) |
| Wilhelmus Dercksen (1723- ) |
| Lukas Dercksen (1723- ) |
| Elisabeth Dercksen (1729- ) |
| Elisabeth Dercksen (1730-1812) |
| Albertus Dercksen (1733- ) |