Casa Grande Ruins Casa Grande Ruins National Monument, Arizona: A Centennial History of the First Prehistoric Reserve 1892 - 1992

Numerous people gave of their time and aided me in researching and writing this report. My thanks go to Superintendent Donald Spencer and his staff — Nathan Allen, John Andresen, Bettie Gill, and Aleta Knight — at Casa Grande Ruins National Monument. I valued the efforts of the people in the following agencies and institutions: Western Archeological and Conservation Center, Tucson, Arizona Office of the Bureau of Land Management in Phoenix, Arizona Department of Library, Archives and Public Records in Phoenix, Arizona Historical Society in Tucson, University of Arizona Library Special Collections, Arizona Foundation in the Carl Hayden Library of Arizona State University in Tempe, Sharlot Hall Historical Society in Prescott, National Archives and Library of Congress in Washington, D.C., and the Regional Archives and Record Center in Denver, Colorado. The advice given by Gordon Chappell and Thomas Mulhern of the Western Regional Office in San Francisco was greatly appreciated. I also wish to thank Frank Williss, Wil Logan, and my wife Margaret for their comments. Sallie Van Valkenburgh deserves recognition for her pioneering work on Casa Grande Ruins National Monument history.