Sergei Mikhailovich Prokudin-Gorskii (in Russian: Сергей Михайлович Прокудин-Горский), (1863-1944), Russian photographer who pioneered color photography. Main article about him is found at English wikipedia: Sergei Mikhailovich Prokudin-Gorskii. The existing collection of colour pictures by Prokudin-Gorskii consists of 1,902 photographs, bought from his family by the Library of Congress in 1948. T