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Document showing children and grandchildren of Isaac van Gorkum and Antonia van Hengstbergen, including Maria, who married Frank LeCocq Sr. Lists birthdates, birthplaces, and deathdates for some.
LeCocq, van Gorkum, family tree, registrar, van Hengstbergen, Isaac, Sophia Wilhelmina, Maria, Theodora Josephine, Frank Sr.
Excerpts from Registrar, "Family of Isaac van Gorkum" (2020). LeCocq Family History. 17.