Joost married DIJCKGRAEFF, Maritgen Hendriksdr Bef 6 Mar 1626. Maritgen (daughter of DIJCKGRAEFF, Hendrick Willemsz) was born Abt 1570, Poortugaal, Albrandswaard, Zuid-Holland, Netherlands; died Bef 24 Jun 1631. [Group Sheet]
- Yes, date unknown