Jules Gilliéron
Jules Gilliéron (21 December 1854 – 26 April 1926) was a Swiss-French linguist and dialectologist. From 1883 until his death, he taught dialectology at the École pratique des hautes études in Paris. In 1887, he co-founded the "Revue des patois gallo-romans" ("Journal of Gallo-Romance dialects"), which was published until 1893. His most notable work was the monumental "Atlas Linguistique de la France" ("Linguistic Atlas of France"), published between 1902 and 1910.