Joseph Leidensdorff, a son of Meijer Leidensdorff and Clara Hammelburg, married 4 Mei 1910 in Zaandam Kitty Mock, who was born 1876 in London as daughter of Isaac Hartog Mock and Fokje Crost. The couple had two children: Sara and Isaac.
After their marriage, the couple Joseph Leidensdorff lived at Haarlemmerstraat 50 in Amsterdam, where in March 1911 their daughter Sara and in January 1913 their s…