Tempe (Ariz.) -- History -- Sources

The Hayden Family Papers consist of the personal, political, and business correspondence of Charles Trumbull Hayden and his wife, children, and relatives. Although the letters range from 1844 to 1912, the majority of the collection is comprised of personal family correspondence dating from 1875 to 1903.

The Robert L. Mullen Collection contains correspondence, notes, a manuscript, photographs, land title instruments, certificates, academic transcripts, ballots, voter registers, financial records, news clippings, and printed matter documenting the life of a rancher and public servant. These materials date from 1880 to 1982 and are divided into five series.