He is married to Anna Cathrina Verslijke.
Permission for the marriage has been obtained in Axel on July 3, 1762.Source 1
They got married on July 18, 1762 at Axel.Source 11762-07-03 (hier getrouwd 18 juli), Johannes Baptista de Kremer j.m. geb. te St. Nicolaas met, Anna Cathrina Verslijke j.d. geb. te Belseere, Beide won. Beoostenbly Bezuiden
Axel, transcriptie ref. trouwboek 1604-1648, 1653-1691, 1691-1729, 1729-1749, 1750-1791 en 1791-1796 http://www.geneaknowhow.net/script/zeeland.html