People from Bourges

Pierre-Émile Martin (French: [pjɛʁ emil maʁtɛ̃]; 18 August 1824, Bourges, Cher – 23 May 1915, Fourchambault) was a French industrial engineer. He applied the principle of recovery of the hot gas in an open hearth furnace, a process invented by Carl Wilhelm Siemens.
In 1865, based on the Siemens process, he implemented the process which bears his name for producing steel in a hearth by remelting scrap steel with the addition of cast iron for the dilution of impurities.
His work earned him the award of the Bessemer Gold Medal of the Iron and Steel Institute in 1915 and of the French nation (knight in 1878 then Officer of the Legion of Honour in 1910).

Gaëtan Henri Alfred Edouard Léon Marie Gatian de Clérambault (2 July 1872 – 17 November 1934) was a French psychiatrist.
Apart from his psychiatric studies, he was an acclaimed painter and wrote on the costumes of various native tribes. He was also a professional photographer; from 1914 to 1918 he took around 30,000 photographs. Some of the photos were taken as part of a research project involving symptoms of hysteria. Many of his photos were later placed in the Musée de l'Homme.