The J. Walter Thompson Company. John F. Devine Papers span the years from 1952 to 1974 but primarily contain files from 1956 to 1970 documenting Devine's activities first as administrator of the Radio/Television Department (1954 to 1960) and then as a corporate executive in the New York office (1960 to 1970). As a whole, the collection provides a glimpse into media advertising operations during the period of transition from radio to television as the dominant medium for product-sponsored advertising and programming. In particular, the papers reveal Devine as an adept financial manager on the corporate level. As Department administrator, Devine was responsible for the development of television programming for specific clients, including Eastman Kodak Company (The Adventures of Ozzie and Harriet, Screen Directors Playhouse, and The Ed Sullivan Show), Ford Motor Company (Ford Theatre, Tennessee Ernie Ford, and Suspicion), Kraft Foods Company (Kraft Television Theatre), and Lever Brothers Company (The Lux Show Starring Rosemary Clooney and Lux Video Theatre), among others. Correspondence, memoranda, and reports indicate the rapid acceptance of television as the primary advertising medium and the concurrent development of specialized departments within JWT to serve the expanding needs of clients. The importance of market research to define product consumption patterns and to refine client advertising promotions is illustrated in research requests, correspondence, memoranda, and reports. The inception and growth of organized labor groups, including the American Federation of Musicians (AFM), American Federation of Radio and Television Artists (AFTRA), American Society of Composers, Authors, and Publishers (ASCAP), Screen Actors Guild (SAG), and Writers Guild of America (WGA), are also delineated in correspondence, memoranda, and reports. In addition to his employment at JWT, Devine was an advertising industry representative to negotiations between television networks and organized labor groups during the period from 1956 to 1960.