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Male Jacob Van Valkenburg Click to view Jacob Van Valkenburg in the family tree

Jacob was born about 1720 and his baptism took place on June 19th, 1720.1   Jacob's father was Bartholomew Van Valkenburg and his mother was Catherine Van Alstyne.  His paternal grandparents were Joachem Lamberts Van Valkenburg and Eva Hendrickse Vrooman; his maternal grandparents were Abraham Jans Van Alstyne and Jannetje Thomasz Mingael. He had six brothers and two sisters, named Joachem, Lambert, Pieter, Thomas, Abraham, Isaac, Eva and Jannetje.  He was the second youngest of the nine children.1 

1 2013.ftw
Further source/citation:
World Family Tree Vol. 2, Ed. 1 @ Tree #2013