Professor. Correspondence and papers (1978–1990) of William F. Muhs, a professor of finance at Washington State University and Montana State University, and research materials (1847–1990) he collected about industrial efficiency pioneer Harrington Emerson. These include records and publications of Emerson’s businesses: the Emerson Company, Emerson Engineers, and Emerson Institute. Also included are photographs (1879–1929) of Harrington Emerson and his family, and sound recordings (1978–1982) from Muhs’s research on Emerson, and from management conferences he attended.