The Hoard Papers exist in two parts: a group of 73 letterpress books donated in 1959, and additions received in 1965-1966 consisting originally of 82 letterboxes. Prominent correspondents include agriculturalists Henry C. Adams, Henry B. Gurler, William A. Henry, and Edward B. Voorhees; educators Richard T. Ely, James H. Stout, Reuben G. Thwaites, Charles R. Van Hise, and Booker T. Washington; and political figures James O. Davidson, Marcus Hanna, Elisha W. Keyes, Belle Case La Follette, Robert M. La Follette Sr., Joseph V. Quarles, John C. Spooner, Isaac Stephenson, and William Howard Taft. Also includes private and business correspondence of his son Halbert L. Hoard, 1891-1908.
Also now filed with the additions is a small amount of correspondence, clippings, and Hoard's writings donated in 1925; and some family photographs. The photographs in PH 358 include images of members of the Hoard family and an image of Arthur Hoard and others climbing Mount Rainier in 1926. Those in PH 366 include images of the Hoard children, Harriet, Anna Agnes, and Shirley, 1895-1901, and images of Agnes' grave after her death at age 15.
