Library of Congress - Research and Reference Services
University of California, Los Angeles - Charles E. Young Research Library
University of California, Los Angeles - Charles E. Young Research Library
Washington State University - Holland Library
Letters to Charles Sturgeon and others.
Harvard University - Houghton Library
61 letters and documents to Anmer Hall (a pseudonym used by Alderson Burrell Horne), manager of the Westminster Theatre, from notable actors and others
Washington State University - Holland Library
Indiana University Purdue University Indianapolis - Ruth Lilly Special Collections and Archives
Annual reports detailing the accomplishments, programs, and financial information of the Foundation
Indiana University Purdue University Indianapolis - Ruth Lilly Special Collections and Archives
Annual reports detailing the accomplishments, programs, and financial information of the Foundation