Johanna Hartog Blommenkoper - Waas Born 9-11-1840 Rotterdam, Netherland. Daughter of Hartog Wessel Blommenkoper and Sara Jacob Waas Married to: Louis Samuel Cats - Content Born 24-8-1836 Rotterdam, Netherland, died 2- Aug 1903 Rotterdam, Netherland, 66 or 67 years. Son of Samuel Salomon Cats - Cohen and Saartje Hijman Content Children: | |