Hagley's manuscript collections, printed sources, and visual materials contain information on various food industries, especially their business practices and processing methods. Our library holds more than 40,000 trade catalogs and many trade journals containing pertinent information on a wide range of topics. The collection includes industry publications such as National Food Distributors' Journal (1931-1959), Quick Frozen Foods (1952-1985), Industrial Refrigeration (1953-1961), Ice and Refrigeration (1891-1953) Food Engineering (1951-1976), Food Service Magazine (1956-1972), Soda Fountain (1929-1945), and Food Industries (1928-1951) that document a wide range of practices by firms, as well as some annual reports of food companies such as Food Fair Stores, Beatrice Foods, Chock Full O'Nuts, Dean Foods, and General Mills.
Equipment catalogs such as McArthur, Wirth & Co. Butchers' and Packers' Tools and Machinery (1900) and Secrets of Meat Curing and Sausage Making (1908) contain illustrations, machinery, guidelines on food manufacturing methods, and a wealth of other information. Handbooks directed to businesses like The Market Assistant (1867), The Grocer's Encyclopedia (1911), and The Hotel Butcher (1935) discuss products available in a particular period, how they should be handled, and other valuable subjects. Textbooks such as those published by the International Correspondence Schools in the early twentieth century contain technical information on the processing methods of virtually every food.
Among our manuscript holdings, the Seagram Company, Ltd. archive documents the global operations of one of the world's largest beverage alcohol firms, especially after 1935. Distilling technology, marketing methods, and market share are among the topics detailed in these records. The Pennsylvania Railroad records include information on the transportation of livestock (mostly 1860s-1880s) and Florida citrus products (1920s). The Keystone Mushroom Farm archive documents the development of southern Pennsylvania's mushroom industry. The records of Wilmington, Delaware, caterer Edith McConnell illustrate the growing popularity of commercial food service in the mid-twentieth century.
Visual materials augment Hagley's manuscript and print collections. In 1953, the National Association of Manufacturers (NAM) launched its "Industry on Parade" television series, which featured different types of industries—for example, avocado production in California. Films from the DuPont Company promote agricultural uses for herbicides and pesticides in the 1970s. Still photographs document the meat, poultry, and mushroom industries and include images of bars, restaurants, liquor stores, and retail food stores such as those operated by the Wawa Dairy Farms.