Isidoor Julius Menko was the son of Izaak Menko and Renetje Vos. Isidoor Julius married in 1903 in Wildervank to Henderina Polak.
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In addition, a Jokos file (number 11053) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compe…