Most of the photos on this site were extracted from reference images (high-resolution tiffs, 20 to 200 megabytes in size) from the Library of Congress research archive. (To query the database click here.) Many were digitized by LOC contractors using a Sinar studio back. They are adjusted by your webmaster for contrast and color in Photoshop before being downsized and turned into the jpegs you see here.
Vintage photos of:

February 1937. Calipatria, California. Native of Indiana in a migratory labor contractor's camp. "It's root hog or die for us folks." Large format negative by Dorothea Lange for the Resettlement Administration. View full size.

Sept. 18, 1961. New York. "Summit Hotel, 51st Street and Lexington Avenue. Exterior from northwest. Morris Lapidus, Harle & Liebman, architects." Hints of Cold War intrigue here. Photo by Samuel H. Gottscho. View full size.

May 1910. St. Louis, Missouri. "Burns Basement Branch. A dark dirty cellar, 3518 Evans Avenue." Newsies picking up their papers from the St. Louis Times news agent. Photo by Lewis Wickes Hine. View full size.

1939. "Service station in Washington, D.C." Continuing today's Essorama. 35mm nitrate negative by David Myers. View full size.

August 1938. "Picket line at the King Farm strike near Morrisville, Pennsylvania. Negro and white agricultural workers striking against an hourly wage of 17 to 20 cents." Medium format negative by John Vachon. View full size.

1936. "Mt. Holyoke, Mass. - Paragon Rubber Co. and American Character Doll. Pressing rubber bodies (French)." With "Old Sadie." Continuing our guys-and-dolls series. Large format negative by Lewis Hine. View full size.

July 1937. "Gas station in Washington, D.C." Ott's Esso Service, providing our second example in as many weeks of gas-station faux flora. Maybe this was a thing back then. Medium format negative by John Vachon. View full size.