University of Wyoming American Heritage Center, Laramie, Wyo
- Papers, 1938-1942.
- 779 items, 23 vols., and 7 folders; collection contains correspondence, memoranda, addresses, and other papers relating to Arnold’s service as assistant U.S. attorney general.
- Constantine Peter Arnold papers, 1841-1943; ca. 22 cubic ft.; finding aid; correspondence.
- Philo Clarke Calhoun papers, 1771-1964; 12.83 cubic ft.; finding aid; correspondence.
- William McCullough papers, 1900-1968; 11.3 cubic ft. (19 boxes); correspondence concerning the Evalyn McLean estate.
Alabama Department of Archives and History, Montgomery, Ala.
- Clifford Judkins Durr papers, 1899-1976; 16 cubic ft. (46 archives boxes, 1 oversize box, and 5 oversize folders); finding aid; correspondence
University of Chicago, Chicago, Ill.
- Thomas Vernor Smith papers, 1934-1946; 5 ft.; correspondence.
Hagley Museum and Library, Wilmington, Del.
- E.I. du Pont de Nemours & Company records (Series II), 1765-1962; 530 linear ft.; finding aid; correspondence.
Harvard University Law School, Cambridge, Mass.
- Papers of Thomas Reed Powell, 1905-1955; 10 linear ft. (ca. 6,000 items); finding aid; correspondence.
Haverford College, Haverford, Pa.
- Fred Rodell papers, 1931-1974; ca. 350 items in 2 boxes; correspondence.
Library of Congress, Washington, D.C.
- Thomas Swann Harding papers, 1921-1959; ca. 3 ft. (1,800 items); correspondence.
- Robert Houghwout Jackson papers, 1816-1983; 110 linear ft.; finding aid; restricted; correspondence.
University of Michigan Bentley Historical Library, Ann Arbor, Mich.
- Blair Moody papers, 1928-1954; 31 linear ft.; finding aid; correspondence.
- Frank Murphy papers, 1908-1949; 106 linear ft., 39 vols., and 2 oversize folders; finding aid; restricted; correspondence.
West Virginia University, Morgantown, W. Va.
- West Virginia State Board of Control correspondence, 1909-1949; 102 ft.; correspondence.
State Historical Society of Wisconsin, Madison, Wis.
- William Kirsch papers, 1921-1954; 3.7 cubic ft.; correspondence.
Yale University Beinecke Rare Book and Manuscript Library, New Haven, Conn.
- Usher L. Burdick papers, 1945-1972; .75 linear ft.; correspondence.
- Matthew Josephson papers, 1917-1979; 8.5 linear ft.; finding aid; restricted; correspondence.
Yale University Sterling Memorial Library, New Haven, Conn.
- Alfred Mitchell Bingham and the Common Sense collection, 1920-1975; 33 linear ft. (53 boxes, 2 folios, 1 vol.); finding aid; correspondence.
- Edwin Montefiore Borchard papers, 1910-1950; 61 linear ft. (148 boxes); finding aid; correspondence.
- Charles Edward Clark papers, 1907-1967; 56 linear ft. (140 boxes, 1 folio); finding aid; correspondence.
- Jerome New Frank papers, 1918-1972; 104.25 linear ft. (218 boxes, 1 folio, 1 vol.); finding aid; restricted; correspondence.
- John Punnett Peters papers, 1909-1981; 13.25 linear ft. (34 boxes); finding aid; restricted; correspondence.