Hanna de Jong was a daughter of Abraham Israels de Jong and Rebecca Levie de Jong. She married Jacob Blits in 1901 in Amsterdam.
Stadsarchief Amsterdam, archiefkaart Hanna de Jong
In addition, Jokos files (numbers 54677, 17549, 34259) on this household or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos files reveal that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 3).