Abraham Elsas was married to Ariana Cune, daughter of Andries Isaia Cune and Elisabeth Polanus.
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In addition, a Jokos file (number 55009) 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 compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 3019 / 18911).