André Citroën

André-Gustave Citroën (November 2, 1878-July 3, 1935) was a French Jewish entrepreneur of Dutch and Polish descent. He is remembered chiefly for the make of car named after him, but also for his invention of double helical gears.André-Gustave was the 5th and last child of the Dutch Jewish diamond merchant Levie Citroen and Mazra Kleinmann (of Warsaw, Poland). He was related to the famous British philosopher A.J. Ayer. The Citroen family moved to Paris from Amsterdam in 1873. Upon arrival, the diaeresis was added to the name, changing Citroen (Dutch for Lemon) to Citroën. His father committed suicide when André was only six years old.
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