Series I: Biographical Material, 1919-1985
Subseries I.A: Early Life: Italy and Emigration, 1919-1932
Subseries I.B: Student Life: Vassar College and New York University 1924-1930
Subseries I.C: Teaching: The Spence School, 1943-1985
Subseries I.D: Family Life: Genealogy, Marriage, and Children 1883-1983
Series II: General Correspondence 1925-1986
Series III: Publications, Writings, Lectures, and Research Files 1886-1989
Subseries III.A: General Writing and Research Files 1886-1989
Subseries III.B: Vatican Obelisk Translation 1949-1963
Subseries III.C: Medardo Rosso 1886-1984
Subseries III.D: Jean-Étienne Liotard 1978-1987
Subseries III.E: Defining Modern Art: Selected Writings of Alfred H. Barr, Jr. 1979-1987
Subseries III.F: "Our Campaigns" in The New Criterion 1925-1989
Series IV: Museum Matters 1928-1983
Series V: Photographs and Scrapbooks 1874-1976
Series VI: Notebooks and Datebooks 1948-1987
Series VII: Barr Art Collection 1940-1987