Mozes Philipson and Sara Hoogstraal had a daughter Geertje Paulina and a daughter Anna Betsy.
Haags Gemeentearchief, overlijdensakte Anna Betsy Philipson; Record of marriage certificates of the Westerbork municipality, currently at the archives of Gemeente Midden-Drenthe in Beilen
In addition, a Jokos file (number 8371) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.