Jacob Glasbeek was a son of Hartog Glasbeek and Saartje Lucasse.
Stadsarchief Amsterdam, archiefkaart Hartog Glasbeek
Jacob Glasbeek married Esther Reiss in Westerbork transit camp on 29 july 1942. Just like his father he was a market vendor. Esther Reiss was a daughter of Barend Reiss and Hanna Marie Root. Her occupation was seamstress.
Record of marriage certificates of the Westerbork municipality, currently at the archives of Gemeente Midden-Drenthe in Beilen