He is married to Marianne Heije.
Permission for the marriage has been obtained in Axel on December 22, 1787.Source 1
They got married on December 24, 1787 at Axel.Source 11787-12-22 (hier getrouwd 6 januari 1788), Jan Coppaart j.m. geb. in Stoppeldijk Axelambacht, won. aldaar met, Marianne Heije j.d. geb. op Hulsterambacht, won. op Stoppeldijk Axelambacht
Axel, transcriptie ref. trouwboek 1604-1648, 1653-1691, 1691-1729, 1729-1749, 1750-1791 en 1791-1796 http://www.geneaknowhow.net/script/zeeland.html