Betje Moscou, the widow of De Haan, was stopped on the Stadionkade in Amsterdam by two members of the Kolonne Henneicke on 11 August 1943. She was carrying a false identity card. She was deported to Auschwitz via the Hollandsche Schouwburg and Westerbork.
A. van Liempt, Kopgeld. Nederlandse premiejagers op zoek naar joden, 1943 (Amsterdam 2002) 162
In addition, a Jokos file (number 51521) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.