The Perry M. Thomas collection contains a scrapbook about Operation Crossroads, a dvd of a newsreel about the tests on the Bikini Atoll, and the canvas military duffel bag the scrapbook was donated in. The Operation Crossroads scrapbook contains documents about the mission including location charts, diagrams of cameras in airplanes, data about the equipment, as photographs. There is also a history of the operation written by Perry Thomas. The photographs in the album include staff members, airplanes and cameras in the airplanes, photographic equipment, preparation for the tests, testing of the bombs, life on Kwajalein Base, and native Bikini atoll residents. There are also a small number of images of tests in Alamogordo, New Mexico as well as copies of published documents of eyewitness accounts of the Hiroshima and Nagasaki bombings from the New Yorker Magazine.

The newsreel was possibly produced by the Army or Navy, and contains footage of the tests and preparations. Also included is the book Operation Crossroads: The Official Pictorial Record by Historian, Joint Task Force One published in 1946. The book contains photographs with caption of the preparations and tests of Operation Crossroads.

The electronic resources contains the files from the digitized film of the newsreel.