Duifje de Haan was the daughter of Benjamin de Haan and Heintje Gokkes. She got married to Jozef Koekoek, the son of Mozes Koekoek and Lea de Haan. He died in 1925. When Duifje died in 1942, she was burried next to her husband at the Jewish cemetery at Arnhem.
Addition of a visitor of the website
In addition, a Jokos file (number 8824) on this household 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 looted securities or bonds. (W-claim, number C62-66-67-68-98/1167).