The George O. Gey Collection spans his entire career, with the bulk of the material from his tenure as Director of the Finney-Howell Cancer Research Laboratory. Included are correspondence with individuals, industries, granting agencies, foundations, and other organizations; grant records (including proposals, applications, budgets, and reports); laboratory progress reports; and reprints. Other professional materials include records of the Tissue Culture Association and Gey's notes and reprints. Photographic materials include images of HeLa cells and early examples of George Gey's roller tube experiments. The collection also contains a selection of personal materials, such as photographs, family correspondence, items from World War I, picture postcards, certificates, and memorabilia. In addition there are reels of motion picture film, books, surgical instruments, and laboratory equipment.