He is married to Grietje Cornelisdr Hoogesteger.
Permission for the marriage has been obtained in Kruiningen on September 5, 1738.Source 1
They got married on September 26, 1738 at Kruiningen.Source 1696. Otr. 5 september, Tr. 26 september, Jan Jacobsz. Dek, geboren onder Kruiningen, en Grietje Cornelisdr. Hogesteger, wed. van Jan Coman, beide wonende aan de Oostdijk.
Kruiningen index ref. trouwen 1671-1810 https://geneaknowhow.net/script/zee/Trouwen%20Kruiningen%201671-1810.pdf