 Leendert Jan van HelvoortBorn 1857 Brakel, Netherland. Occupation: Engineer Married to:  Rozetta Bernard Frank - NotenboomBorn 1859 Brakel, Netherland. Daughter of Bernard Salomon Frank - Beer and Roosje Andries Notenboom - de Jong | |
Leendert Jan van HelvoortBorn 1857 Brakel, Netherland. Occupation: Engineer Married to: Rozetta Bernard Frank - NotenboomBorn 1859 Brakel, Netherland. Daughter of Bernard Salomon Frank - Beer and Roosje Andries Notenboom - de Jong | |