The engineering and research unit of All American Aviation, once the principal feeder airline for the mid-Atlantic region, became the All American Engineering Company in 1953. Their records document the early evolution of All American Aviation, the development of its system of air pick-up service, and its use in postal and military applications.

Capital Airlines was a commercial airline for the eastern, southern, southeastern, and midwestern United States from 1936 to 1961. In the 1950s, it was the fifth-largest airline in the United States. The airline was the first to offer service from the west to Washington D.C., coach class service, in-flight television, and jet-powered commercial aircraft. This collection is of material that would have been presented to a passenger on a flight around 1957, apparently from Buffalo, New York, to Philadelphia, Pennsylvania, and then back again.

Cyril C. Thompson (1892-1976) had a long career in the accounting, management and public relations sides of the aviation industry, joining near the beginning of commercial aviation in 1928 and retiring just as the era of commercial jets began. Thompson was as an executive of United Air Lines for eighteen years, and later an airport planner, consultant, and prolific author and speaker. The papers of Cyril C. Thompson consist of a selection of items that he retained as mementos of the different stages of his career, plus materials and drafts for an unpublished biography of Idaho Senator William E. Borah and a never-completed personal history of United Air Lines on which he was working at the time of his death.

Eastern Air Lines operated from 1927 to 1991 and was one of the Big Four airlines (others included United, Delta, and American) that for almost fifty years dominated commercial airline travel in the United States. This item is a postcard with the illustration of Eastern's Modern DC-4 Silverliner airplane.

Capital Airlines was a commercial airline for the eastern, southern, southeastern, and midwestern United States from 1936 to 1961. It was the fifth largest airline in the United States. The airline was the first to offer service from the west to Washington D.C., coach class service, in-flight television, and jet-powered commercial aircraft. This collection includes materials related to Capital Airlines predecessor company, Clifford Ball Airlines, and materials created under its former name, Pennsylvania Central Airlines. There is also materials related to the Capital Airline Association. The collection documents the history of the airlines, its aircraft and employees.

Eastern Airlines was a major U.S. domestic airline from 1926 to 1991. It was considered to be one of the four largest carriers during the mid-twentieth century, the other three being American, TWA, and United. Eastern Airlines dominated the air travel market between New York and Florida from the 1930s through the 1950s. This small collection of Eastern Airlines photographs and ephemera predominantly reflects the company's aircraft fleet between 1938 and 1991. In addition, there are materials that document the company's route system and later decline. This collection has been arranged into three series: Photographs, Publications and ephemera, and Newspaper clippings and magazine articles.

Ransome Airlines, Pan Am Express (PAE), and Trans World Express (TWE) are predecessor and successor domestic airline companies. Ransome Airlines was a regional commuter service that operated between 1967 and 1986. Pan American World Airways acquired Ransome Airlines in April 1986 and renamed the company Pan Am Express. It operated domestic routes for the first time in the parent company's history. When Pan American World Airways went bankrupt in 1991, their wholly owned subsidiary was purchased by Trans World Airlines and became Trans World Express. It continued to fly domestic routes until 1995. This collection of Ransome Airlines, Pan Am Express, and Trans World Express records documents the three airlines from the initial establishment, through each transition, to the final dissolution. While not a complete company archive, the records provide a representative and detailed view of high-level operations at Ransome Airlines, PAE, and TWE through the activities of various executives. The collection contains the papers of five company presidents, three directors of finance, two directors of public relations, one director of personnel, one director of planning and administration, and one member of the accounting department. It will be of high research value to aviation historians interested in the effects of deregulation, aircraft acquisitions, financial planning, company mergers and transitions, and bankruptcy. The collection will also interest labor historians involved in collective bargaining research.

Trans World Airlines (TWA) was a major American airline from 1925 until 2001. It was created by the 1930 merger of Transcontinental Air Transport and Western Air Express. TWA was plagued through its history by financial deals that were not in the best interest of the company. These deals led to heavy debt and its eventual acquisition by American Airlines after its third bankruptcy filing. This airline timetable includes photographs illustrating the airline's sleeper service on cross country flights.