Nathan Mullem was the youngest of the three children of Hartog Mullem from Amsterdam and Sara Snoek from Den Helder. He was an electrician by trade. On 3 July 1935 he married in Amsterdam Lena Wijnschenk, a daughter of Salomon Wijnschenk and Sara Visjager. The couple had one daughter, Sara, who was born 30 November 1935.
The Mullem family lived in De la Reijstraat 19 3rd floor in Amsterdam. They …