Joseph Glasbeek was married to Sophia Sarlui. Their daughter Marianne was born in transit camp Westerbork on 5 June 1943.
Record of birth certificates of the Westerbork municipality, currently at the archives of Gemeente Midden-Drenthe in Beilen
In addition, Jokos files (numbers 17085, 51838) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.