77 items. The papers and photographs pertain primarily to Caldwell's work on a "second section" for a Freedom Train exhibit sponsored by the American Heritage Foundation and the Department of Justice, 1947-1949. The "first section" of the Freedom Train was to display documents showing the growth of the ideas of freedom of the individual in the United States. The "second section," which was to have shown what happened to individual rights in Germany when the Nazis took power, was not included in the final touring exhibit.

Also included in the collection are a postcard from Arkansas former governor Charles Brough to Caldwell's parents and three pages of typed comments on Brough by Arthur Brann Caldwell.