Mackenzie, DeWitt.

The DeWitt Mackenzie Papers include war dispatches, correspondence, newspaper columns, photographs, unpublished memoirs, books and other files that document his life as an Associated Press correspondent.

Mager, Gerald M.

Reports, presentations, correspondence, and other materials created and collected by Gerald M. Mager while he was a professor in the School of Education at Syracuse University

Martin, Keith, 1911-1983.

Papers of the American painter, collagist; died 1983. Collection includes correspondence (1933-1978); artwork reproductions and photographs; writings, including a reminiscence of Gertrude Stein; and memorabilia, including inventories of artwork, itineraries, photographs, financial material, exhibition announcements, invitations, and catalogs (1931-1987), and articles and reviews about Martin. Correspondence covers family, business, and personal correspondence, including that with Adelyn Breeskin, Tom L. Freudenheim, Henry Gorski, Lincoln F. Johnson, Ralph T. Millet, Wasyl Palijczuk, Charles Parkhurst, Brenda Richardson, Eleanor Patterson Spencer, Bertha Fanning Taylor, and Alice B. Toklas.

Mayer, Alfred M. (Alfred Marshall), 1836-1897.

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

Mayor, A. Hyatt (Alpheus Hyatt), 1901-1980.

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.

Mayor, Alfred Goldsborough, 1868-1922.

Correspondence (1881-1926); typescript manuscripts, notebooks, photographs, sketchbooks, and printed material, including articles by and about Mayor, and newspaper clippings. Correspondence includes that of Anna Hyatt Huntington, Audella Beebe Hyatt, A. Hyatt Mayor, and Harriet Randolph Hyatt Mayor.

Mayor, Harriet H. (Harriet Hyatt), 1868-1960.

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.

Mayor, Maria Snowden.

Correspondence, personal documents, and published material. Correspondence includes that of Audella Hyatt, Alfred G. Mayor, and Harriet Hyatt Mayor.

McKinley, John, 1921-2011

Writings, correspondence, memorabilia of the adult educator, proponent of Participation Training and developer of the Indiana Plan (for adult education in the church); also includes published writings by others.

Medellin, Octavio, 1907 or 8-1999.

Papers of the Mexican-American sculptor, mosaicist, specialized in religious subjects. Correspondence (1941-1963), incoming and outgoing; artwork reproductions, 14 original sketches and other material relating to a number of church commissions; autobiographical essays, and memorabilia, including articles and reviews about Medellin (1941-1958), newspaper clippings (1936-1962), and exhibition catalogs. Correspondents include Ben Bailey, Xavier Gonzalez, Gyorgy Kepes, Carlos Merida, Cora Elder Stafford, Salvador Toscano, and Charles Umlauf.

Myers, James, 1882-

Papers of the American Presbyterian minister, author, and labor relations activist. Collection includes correspondence (1926-1964); articles, books manuscripts and drafts, pamphlets, speeches; photographs and scrapbooks (1894-1913).