2 linear feet
The Henry Earle Riggs collection includes correspondence and documents, 1914-1924, relating to valuation of the Detroit United Railway. This includes correspondence removed from the files of Mortimer E. Cooley. There are also other materials relating to public utilities valuation, civil engineering, and public works, mainly lectures, addresses, articles, and testimony.
Of special note is a file of correspondence relating to University of Michigan Civil Engineering alumni killed in World War I, file on the history of the Ann Arbor Railroad, and a 1942 speech describing problems of the proposed Willow Run, Michigan, wartime housing development.