Describes archival materials and holdings at over 1,000 archival institutions.

Photographs of American Indians by Edward Curtis.

Includes photographs of railroad development, coaches and wagons, mining, smeltering, and milling, freighting, emerging cities and towns, parades, cattle roundups and branding, sheepherding, prospecting, hunting, and Chinese immigrants, as well as landscapes. A number of the images portray the Lakota Sioux.

The collection focuses on working people, American industry, and political issues. Art work by social realists, women, African Americans, and Mexicans is well represented.