Kaatje Schaap, usually named Clara, was a daughter of Wolf Schaap and his 2nd wife Judith Stuwert. She was a diamond cutter by profession and married 8 January 1890 in Amsterdam the diamond polisher Mozes van Engel, a son of Hartog van Engel and Judik Salomon de Metz. Mozes however passed away already after four years, on 12 April 1894.
Kaatje van Engel-Schaap lived at Plantage Kerklaan 4 2nd flo…