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 12,1864. This letter explained to Ridgway where he could find a copy of Baird's book, Birds of North America.