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Description of the Collection Items created or collected by W. Ronald (Ron) Johnson covering his years as a student at Illinois Institute of Technology. Includes 36 2" x 2" photographs, including 29 taken at the Ansul Chemical Company in Marietta, Wisconsin in 1955, documenting a class held for the senior class of the Fire Protection Engineering program. Also present are 7 taken at the Underwriters Lab in Northbrook, Illinois for the same program (at the latter site, testing rubber tire storage fires). The collection...