He is married to Jannetje Josiasdr Poelman.
Permission for the marriage has been obtained in Kruiningen on November 28, 1716.Source 1
431. Otr. 28 november, Tr. – attestatie naar Schore, Jacobus Vette, jm. van Vlake, en Jannetje Jans {Josias}, wed. Jacobus Cooman, beide wonende onder Schore.
Kruiningen index ref. trouwen 1671-1810 https://geneaknowhow.net/script/zee/Trouwen%20Kruiningen%201671-1810.pdf