Born ‎21-2-1902 Paris, France, died ‎18-8-1955 Amsterdam, Netherland‎, 52 or 53 years. Occupation: Office clerk, musician cellist. Son of Andries de Rosa - Davidson and Delphine Dreese‏

Born ‎11-12-1900 Amsterdam, Netherland‎. Daughter of Jacob Speelman - Samson and Simcha Polak - Salzedo‏

Born ‎2- May 1905 Amsterdam, Netherland‎. Occupation: Cellist