Photographer to the Tsar: Sergei Mikhailovich Prokudin-Gorskii (http://www.loc.gov/exhibits/empire/gorskii.html + http://www.loc.gov/pictures/search/?st=grid&co=prok)
That pages are worth to visit.
The photographs of Sergei Mikhailovich Prokudin-Gorskii (1863-1944) offer a vivid portrait of a lost world--the Russian Empire on the eve of World War I and the coming revolution. His subjects ranged from the medieval churches and monasteries of old Russia, to the railroads and factories of an emerging industrial power, to the daily life and work of Russia's diverse population.
In the early 1900s Prokudin-Gorskii formulated an ambitious plan for a photographic survey of the Russian Empire that won the support of Tsar Nicholas II. Between 1909-1912, and again in 1915, he completed surveys of eleven regions, traveling in a specially equipped railroad car provided by the Ministry of Transportation.
Prokudin-Gorskii left Russia in 1918, going first to Norway and England before settling in France. By then, the tsar and his family had been murdered and the empire that Prokudin-Gorskii so carefully documented had been destroyed. His unique images of Russia on the eve of revolution--recorded on glass plates--were purchased by the Library of Congress in 1948 from his heirs. For this exhibition, the glass plates have been scanned and, through an innovative process known as digichromatography, brilliant color images have been produced. This exhibition features a sampling of Prokudin-Gorskii's historic images produced through the new process; the digital technology that makes these superior color prints possible; and celebrates the fact that for the first time many of these wonderful images are available to the public.
Then I stepped up and found http://www.loc.gov/exhibits/all/
then on the page http://www.loc.gov/exhibits/religion/rel07.html these pictures:
"Route of the Mormon Pioneers from Nauvoo to Great Salt Lake, Feb'y 1846-July 1847"
[ img] http://www.loc.gov/exhibits/religion/vc006589.jpg [ /img] (The image is 1000 pixel wide)
[ img] http://www.loc.gov/exhibits/religion/vc006590.jpg [ /img] (The image is 1000 pixel wide)
Thumbnails:
and 
...and the "Martyrdom of Joseph and Hiram Smith in Carthage Jail, June 27, 1844"
