Professor of engineering at the University of Michigan. Photos of Johnston's personal and family life in Wyoming and Michigan, including student activities at the University of Michigan; photos of his work on water projects in the West and in Egypt; and photos of Camp Davis, the summer engineering camp of the University of Michigan in Cheboygan Co., Michigan..
The Johnston collection spans the years of 1888-1928. The bulk of the collection is comprised of photographic prints, mainly cyanotypes, and glass plate negatives. Scattered papers are also present and include biographical material and topical files relating to Johnston's personal, religious, and professional activities. The collection has been arranged into five series, which include: Personal and Family Photographs, Work Photographs, Camp Davis Photographs, Glass negatives, and Biographical Materials.