Jacob Posen, a farmer, was a son of jeweller Eli Posen and of Meta Dorothea Prins. He got married at Westerbork transit camp on 29 September 1943. His wife survived the war. Meta Dorothea Posen-Prins, the mother of the bridegroom, attended the wedding; she signed the marriage certificate.
Record of marriage certificates of the Westerbork municipality, currently at the archives of Gemeente Midden-D…