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:

New York circa 1905. "On the beach at Coney Island." Note the kites. 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.

Circa 1910. "Steam shovel removing a section of coffer dam, Livingstone Channel, Detroit, Michigan." Construction of the navigation channel along the Detroit River. 8x10 inch glass negative, Detroit Publishing Company. View full size.

Washington, D.C., circa 1915. "Grief monument, Rock Creek cemetery." The timeless memorial by Augustus Saint-Gaudens. National Photo. View full size.

Young motorist in an Austin pedal car circa 1949. From a set of 35mm Kodachromes I acquired in northern New Jersey. Here is another view. View full size.

1926. Washington, D.C. "Four Wheel Drive Auto Co. oil truck, H Street N.E." My favorite detail here: "Minimum Labor Charge 50¢." View full size.

March 1865. "City Point, Virginia. 'Jeff Davis,' General Grant's pony." You can't say Ulysses S. Grant lacked a sense of humor. Wet plate negative. View full size.

February 1939. "Twelve-year-old girl who keeps house in a trailer for her three brothers who are migrant workers, near Harlingen, Texas." 35mm nitrate negative by Russell Lee for the Farm Security Administration. View full size.