Botany professor and Director of the Matthaei Botanical Gardens at the University of Michigan; records include administrative and research files related to his positions with the university.
The W. S. Benninghoff collection consists of three series: Botany Department, Matthaei Botanical Gardens, and University of Michigan Biological Station. The strength of the collection is its documentation of the administrative aspects of the Botany Department and Matthaei Botanical Gardens in the 1970s and 1980s.