Correspondence, 1904-1946; photographs, juvenilia, and printed material. Correspondence includes that of Anna Hyatt Huntington, Audella Hyatt, Leon Kroll, Alfred G. Mayor, and Harriet Randolph Hyatt Mayor.

Papers of the Union soldier (1843-1872). Served as a clerk in the 123rd New York Volunteers during the Civil War, participated in Gettysburg and Atlanta Campaigns. Worked as a surveyor following war. Diaries (1862-1865); family correspondence (1862-1878); and memorabilia, including military certificates, Cook's company's muster-out roll, photographs, and newspapers.

Correspondence, 1863-1897; personal documents, manuscripts, and published material of the American physicist.

Daughter of Kate Campbell Vickery and Charles Rowe Vickery, American Congregationalist missionaries to India and Singapore. Includes photographs, writings, notes, and diaries, as well as Vickery family genealogical material.

Correspondence, diary, expedition journal, financial material, scientific notebook and sketches, photographs, published material, including articles and newspaper clippings, and scrapbooks. Correspondence (1854-1902) includes that of Alexander Agassiz, Charles E. Beecher, E.D. Cope, James D. Dana, J.S. Diller, G.K. Gilbert, G. Brown Goode, Asa Gray, Robert T. Hill, Anna Hyatt Huntington, Hyatt’s father, Alpheus Hyatt, Audella Beebe Hyatt, Jules Marcou, Harriet Randolph Hyatt Mayor, A.S. Packard, Charles Schuchert, and Charles Walcott.

Correspondence (1926-1965), limited to a very few letters; exhibition catalogs and announcements for one-man and group shows (1926-1963); 12 journals (1943-1969); photographs and negatives of Datz's work; 80 etchings on 77 copper plates; and clippings (1916-1941).

Papers of the American sculptor, painter, interior decorator, poet, author. Collection includes correspondence, artwork (sketches, watercolors), exhibition catalogs, photographs, writings, and memorabilia, including financial material.

Papers of the American sculptor, specializing in equestrian figures and animals. Correspondence, 1887-1965; diaries, 1925-1958; articles; exhibition catalogs; financial and legal material; manuscripts; and photographs.

Correspondence, photographs, family histories, scrapbooks, manuscripts, diaries, address books and more, most relating to John Dustin Archbold and his daughter Anne Archbold.

Correspondence, incoming and outgoing (1860-1932); diaries; account books; notebooks; a partial autobiography; and sketches. Correspondents include Clara Carter Hyatt Coad, Mary E. Freeman, Anna Hyatt Huntington, Archer M. Huntington, Alpheus Hyatt, Leon Kroll, Alpheus Hyatt Mayor, and Harriet Randolph Hyatt Mayor.