Includes files of the various departments within the library. Contains correspondence, reports, newsclippings, publications, statistics and minutes. Also includes information concerning the J. Reuben Clark, Jr. Library and Brigham Young University Library.

Contains research and reference files, notes, drafts, minutes, correspondence, and other materials produced by Tyler during his career at Brigham Young University and the University of Utah. Includes information on Native American tribes, environmental issues, historiography, and Utah history. Also includes administrative records related to Utah educational and historical institutions. Materials date from between 1949 and 1979.

Contains research material and other files on Southwest Indian land and water rights, including copies of articles and books, court cases, legislation, treaties and other government documents, correspondence, and reports.

Typewritten and handwritten correspondence, brochures, and galley proofs for publications. The correspondence is chiefly with Fred A. Rosenstock of Denver, Colorado and deal with matters relating to the purchasing of rare books. The brochures and galley proofs relate to rare books that were being offered for sale by various dealers.