Jan Harmensen Blanckenvoort Name:Jan Harmensen Blanckenvoort Gender:male Born:Ootmarsum circa 1631 Died:Amsterdam buried on 1670-01-09 Father: Mother: Marriage: Grietje Kaysers (1631 - ?), Amsterdam 1657-04-26 Child: Harmanus Blankevoort (1658 - ?) Occupation: kleermakersgezel References Primary sources Stadsarchief Amsterdam, Amsterdam: DTB-registers (toegangsnummer 5001), 477: 201 & 1047: 180