He is married to Jannetie Adriaans.
Permission for the marriage has been obtained in Kruiningen on April 17, 1712.Source 1
They got married on June 11, 1712 at Kruiningen.Source 1372. Otr. 17 april, Tr. 11 juni, Jan Twenheuvel, en Jannetie Adriaans, wed. Hendrik Hollander, beide wonende aan de Oostdijk.
Kruiningen index ref. trouwen 1671-1810 https://geneaknowhow.net/script/zee/Trouwen%20Kruiningen%201671-1810.pdf