war, Schlumberger came to New York and began to design clothing for Chez Ninon. In 1946, he opened a jewelry salon with his business partner Nicolas Bongard
Marguerite de Witt-Schlumberger (20 January 1853 – 23 October 1924) was a French campaigner for pronatalism, alcoholic abstinence, and feminism. She was
pamphlet. Nicolas (or Nicholas) Koechlin (1781–1852) was a brother of Jacques Koechlin and a grandson of Samuel Koechlin. He created the company Nicolas Koechlin
businessman and inventor Marcel Schlumberger, while her mother is a granddaughter of Marcel's brother, Maurice Schlumberger. The family name came to exist