(1) He is married to (Not public).
They got married
(2) He is married to Matie Ingels Westveer.
Permission for the marriage has been obtained in 's-Heerenhoek on December 22, 1713.Source 1
391. Otr. 22 december ‘s-Heerenhoek, attestatie gegeven, Jan du Mon, wr. Jobtje Maertens, en Matie Ingels Westveer, jd. van Waarde, beide wonende te ‘s-Heerenhoek.
Kruiningen index ref. trouwen 1671-1810 https://geneaknowhow.net/script/zee/Trouwen%20Kruiningen%201671-1810.pdf