Marguerite de Witt Schlumberger
Marguerite de WittSchlumberger was a French campaigner for pronatalism, alcoholic abstinence, and feminism. She was the president of the French Union for Womens Suffrage movement. She married into the Schlumberger family and became a powerfully influential matriarch and the mother of several sons who achieved notability in their own right. For her active involvement and service to the government, she was awarded the Grand Croix of the French Legion of Honour in 1920.
Marguerite de Witt married Paul Schlumberger onJune 1876. He was from a family of Protestant industrialists who traced their wealth back to Pauls grandfather, Nicolas Schlumberger160 , who had made a fortune as a textiles baron. Records indicate that Marguerite gave birth to five sons and one daughter, born in Guebwiller . The eldest son, Jean , achieved fame as a journalist and writer. Conrad and Marcel Schlumberger qualified as a physicist and engineer, respectively, becoming noteworthy for their inventions in the fields of geophysics and petroleum technology. In 1926 these two founded what in 2012 became the worlds largest oilfield services company. Another son, Daniel Schlumberger, was killed in the First World War.
Source: Wikipedia