In 1754 Jodocus Harmannus Berckhof married in Groningen with Marieke Freriks. In the certificate we can read that Jodocus originated from Lier Oostfriesland (Today: Leer, Ost-Friesland) and that Marieke came from Lier-Oord Oostfriesland. Unfortunately no ages are given. We only Marieke was assisted by her father Frerik Martens.

Who knows where they did live and who their family were?