Jacob Frank was the second of the six children of Levie Frank and Henderina Cohen, born in the 1 e Pijnakkerstraat 105a in Rotterdam on 15 June 1900. He was an office clerk by profession and on 11 November 1925 he got married in Rotterdam to Marianna Rebekka Florina de Leeuw, who was born on 31 Janu…
In addition, a Jokos file (number 52543) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.