De Ménil was born
Baron Jean Marie Joseph Menu de Ménil in Paris. After emigrating to the United States during
World War II, he began using the name 'John Menu de Ménil' which is an anglicized version of 'Jean Menu de Ménil'. Over time he stopped using the 'Menu' portion of his surname and began using shortened forms of the surname such as 'de Ménil' or 'Deménil'. John's children also usually spell their surname as 'de Ménil' (sometimes they use the form 'Deménil'). After becoming a U. S. citizen in 1962, de Ménil officially changed his first name from 'Jean' to 'John'. De Ménil was a son of Baron Georges-Auguste-Emmanuel Menu de Ménil (April 20, 1863 – 1947) and Marie-Madeleine Rougier (1866 – 1929). The Menu de Ménil family was a French
Catholic family, many of whose men had been officers in the French military. The title of Baron, which de Ménil inherited from his father, had been bestowed on John's great-great-grandfather Paul-Alexis-Joseph Menu de Ménil (July 17, 1764 – December 30, 1834) on September 11, 1813 by
Napoleon Bonaparte – thus making him a '
baron de l'Empire'. In the 1920s de Ménil earned a degree in
political science from
Sciences Po (Institut d'Etudes Politiques de Paris) and a degree in law from the Faculté de droit de l'
Université de Paris. They had five children. Although the full surname of these children actually is 'Menu de Ménil', in practice they all use the shortened anglicized spelling 'de Ménil' (or sometimes 'Deménil') instead, so that is what is given here: • Christophe (Marie Christophe de Ménil) (born 1933) – The first wife of Buddhist scholar
Robert Thurman (they married in 1960), and the grandmother of artist
Dash Snow. • Adelaide (Louise Adélaïde de Ménil) (born 1935) – A photographer who was the third wife of anthropologist
Edmund Snow Carpenter. • Georges (Georges François Conrad de Ménil) (aka
George de Menil) (born December 4, 1940) – An economist who is married to historian Lois Ames Pattison (born May 15, 1938). Georges and Lois were married on August 3, 1968. • François (François Conrad Thomas de Ménil) (born April 12, 1945) – A filmmaker and architect. He married Susan Kadin Silver (born May 8, 1958) on January 18, 1985 in Harris County, Texas. • Philippa (Anne Caroline Philippa de Ménil) (born June 13, 1947) – A co-founder of the
Dia Art Foundation. Her first husband (whom she married on May 14, 1969, in Harris County, Texas) was Italian anthropologist Francesco Pellizzi (born July 14, 1940). Her second husband (whom she married in 1978) was visionary German art dealer
Heiner Friedrich (born April 14, 1938). In the early years of his de Ménil was a banker, serving as vice-president (1932–1938) of the ''
Banque Nationale pour le Commerce et l'Industrie'' in Paris. Following the outbreak of
World War II and the
Nazi occupation of France, the de Ménils emigrated from Paris to the United States. They maintained residences in New York City and France but settled in
Houston, Texas, where de Ménil would eventually become president of Schlumberger Overseas (Middle and Far East) and Schlumberger Surenco (Latin America), two branches of the
Houston-based oilfield services corporation. ==Building an art collection==