M.A. thesis by Matthew C. Godfrey submitted in partial fulfillment of the requirements for the degree of Master of Arts in History, Utah State University, 1997. Typewritten, 165 single-sided pages.
Ridgway, Robert, 1850-1929 -- Correspondence; Ornithologists -- Biography; United States Geological Exploration of the Fortieth Parallel (1867-1881); West (U.S.) -- Description and travel
Handwritten incoming correspondence to Robert Ridgway from Spencer Baird, July 4, 1869. To Ridgway in Salt Lake City, Utah. The letter mentioned items Ridgway had collected in the Wasatch Mountains.