Ruth Nussbaum was a Jewish refugee from Emden in Germany. In 1939 Mietje Levie and Andries Creveld took her in as their foster child.
R. de Leeuw van Weenen-van der Hoek, Een kille in de mediene. Joods leven in Zuidland (Zuidland, 1994) 170
See for additional information the memorial booklet Zwei von ihnen van M. Claudi en R. Claudi (Emden 1990)
More information about this person can be found on www.dokin.nl