He is married to Willemtje Claassen.
Their notice of marriage was on June 19, 1750 in Oldebroek, GE, NLD.
Den 19 dato (Junij 1750)They got married on July 5, 1750 at Oosterwolde, Oldebroek, GE, NLD, he was 37 years old.Source 1
Harmen Willemzen J.M. van Epe, wonende in 't Oldebroek, En Willemtje Klaasz J.D. tot Oosterwolde, daar bevestigt.
Den 5 Julij (1750) Harmen Willms J.M. van Epe woonende in 't Oldebroek en Willempje Klaasz J.D. tot Oosterwolde