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:

Washington, D.C., circa 1912. "Mrs. Champ Clark and son." Genevieve Clark, wife of House Speaker Champ Clark, and their son, Bennett, the future United States senator last seen here. Harris & Ewing Collection glass negative. View full size.

Washington, D.C., 1919. "Beauty contests at Tidal Basin." Two spectators check out the ladies. Harris & Ewing Collection glass negative. View full size.

June 1938. Memphis, Tennessee. "H.L. Mitchell, Secretary of the Southern Tenant Farmers Union. Union headquarters." Medium-format nitrate negative by Dorothea Lange for the Farm Security Administration. View full size.

New York circa 1910. "Pelham Park Railroad. City Island monorail." The ill-fated electric monorail, whose sole car ("The Flying Lady") wrecked on its first run in 1910, lasted until 1914. George Grantham Bain Collection. View full size.

April 15, 1939. Annapolis, Maryland. "Dorothy Wood, 5, saw to it that her small friend, 'Chuck' Andrews, 3, wasn't being framed by some of the boys who hang around these places. She laced on his gloves herself. The occasion was the Naval Academy's 20th Annual Junior Boxing Championships." View full size.