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.

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 (1892-1960); diaries, genealogical materials, notebooks, photographs, printed material, including articles and clippings, scrapbooks, memorabilia, and sketchbooks. Correspondence includes that of Adelaide Cole Chase, Clara Carter Hyatt Coad, Anna Hyatt and Archer M. Huntington, Audella Hyatt, and Alfred G. Mayor.

Papers of the American sculptors, medalists. Correspondence (1878-1967), with A. Stirling Calder, Jay N. Darling, Daniel Chester French, Charles Dana Gibson, Cass Gilbert, Robert Henri, Anna Hyatt Huntington, Lee Lawrie, Eleanor Roosevelt, Augustus Saint-Gaudens, Lorado Taft, and others; approximately 200 letters of Edwin Arlington Robinson (1913-1934); business records (1913-1967) contain contracts, bills, receipts, and other financial and legal papers; designs and reproductions include sketches, blueprints, and photographs of work through various stages, including some by artists other than the Frasers; memorabilia (1872-1967) includes films, photographs, ephemera, and printed materials; writings (1897-1964) include articles, books, and notes by Fraser and others, notably Edwin Arlington Robinson.