He is married to Maria van Dijk.
Permission for the marriage has been obtained in Axel on May 3, 1720.Source 1
They got married at Axel.Source 11720-05-03 (getrouwd), Frederijk Waelter j.m. van Breslau in Duijtsland, soldaat in 't regiment van Heer Generaal Montese, onder de compagnie van de Heer Majoor St. Martin met, Maria van Dijk wed. van Jan van Grevelingh
Axel, transcriptie ref. trouwboek 1604-1648, 1653-1691, 1691-1729, 1729-1749, 1750-1791 en 1791-1796 http://www.geneaknowhow.net/script/zeeland.html