Klara Jonas van Praag - Krost Born 31-5-1833 Amsterdam, Netherland. Daughter of Jonas Hartog van Praag - Pruikemaker and Vrouwtje Jesaia Krost - Hartog Married to: Mozes Calo - Karreman Born ± 1832 Amsterdam, Netherland. Occupation: Diamond polisher. Son of Michael Calo and Aaltje Karreman |