The Ernest Earl Lockhart Papers, which dates from 1933-1955 and 1988-2001, contains biographical information, diary and journal entries, correspondence, reports, clippings, articles, films, and photographs, which document Lockhart's experience as a member of the United States Antarctic Service Expedition, 1939-1941. The materials that date from 1988-2001 concern Lockhart's attendance at an event that commemorated Byrd's 100th birthday in 1988, requests for his expedition films so they can be included in a documentary, and a postal cover guide regarding the designs of the mail sent during the expedition.