Diaries, letter books, correspondence, notes, memoranda, legal and financial papers, sketches, drawings, photos, newspaper clippings, telegrams, and books, chiefly 1866-1909, relating to the architectural firm of McKim, Mead & White established in New York City in 1879. Covers the establishment of the American Academy in Rome and the building of the Boston Public Library. Includes diary (1863) kept by McKim's father, abolitionist James McKim. Among the correspondents are Edwin Austin Abbey, Daniel Chester French, Charles Dana Gibson, Henry Lee Higginson, John Galen Howard, John La Farge, Frederick W. MacMonnies, Francis D. Millet, Charles Moore, H. Siddons Mowbray, Frederick Law Olmstead, Pierre Puvis de Chavannes, Elihu Root, Augustus Saint-Gaudens, Edward F. Stevens, William H. Taft, and Woodrow Wilson. Related to the Charles Moore collection of the Library of Congress.