Born ‎27-10-1847 Amsterdam, Netherland, died ‎27-2-1904 Amsterdam, Netherland‎, 56 or 57 years. Son of Levie Philip Hartlooper and Femmetje Wolf Knokker‏

Born ‎20-2-1852 Amsterdam, Netherland‎, ‎1st marriage to: Philip Hartlooper - Knokker, ‎2nd marriage/ related to: N.N.. Daughter of Isaac Emanuel Machiel Koopman and Rebekka Elias Pothuis‏