Born ‎2- Mar 1791 Amsterdam, Netherland, died ‎28-4-1851 Amsterdam, Netherland‎, 59 or 60 years. Occupation: Buyer. Son of Manus Jacob Keijzer and Roosje Marcus‏

Born ‎1774 Amsterdam, Netherland‎. Daughter of Gerrit Gershon Abraham Gast and Rebecca Levie (Leib)‏