Isaak is de oudste van zeven kinderen.
He is married to Maria de Tombe.Source 1
They got married on June 5, 1757 at Waalsche Kerk (Leiden), Leiden, Zuid-Holland, Nederland (Netherlands), he was 24 years oldLeiden.
Marriage contract closed May 20, 1757 in Waalsche Kerk (Leiden), Leiden, Zuid-Holland, Nederland (Netherlands)Leiden.
Child(ren):