Yale University Sterling Memorial Library, New Haven, Conn.
- Papers, 1916-1979.
- 29.5 linear ft. (74 boxes); finding aid; collection consists primarily of Danaher’s senatorial files, which include political and constituent correspondence, speeches, background material, and copies of legislation.
- Edwin Montefiore Borchard papers, 1910-1950; 61 linear ft. (148 boxes); finding aid; correspondence.
- Committee to Defend America by Aiding the Allies (Hartford and Connecticut Chapters) papers, 1939- 1944; 1.5 linear ft. (4 boxes); finding aid; material relating to Danaher’s 1944 Connecticut U.S. senatorial campaign.
- Albert Galloway Keller papers, 1888-1956; 26.5 linear ft. (59 boxes); finding aid; restricted; correspondence.
- Florence Ledyard Cross Kitchelt papers, 1909-1947; 9 linear ft. (25 boxes); finding aid; correspondence.
- Russell Cornell Leffingwell papers, 1883-1979; 4 linear ft. (12 boxes); finding aid; restricted; correspondence.
- George Howard Edward Smith papers, 1917-1962; 31 linear ft. (82 boxes); finding aid; correspondence.
- Harold Phelps Stokes papers, 1908-1969; 9.5 linear ft. (18 boxes); finding aid; correspondence.
- Charles-Edward Amory Winslow papers, 1874-1977; 68.25 linear ft.; finding aid; correspondence.
Connecticut Historical Society, Hartford, Conn.
- Charles Levin correspondence, 1916-1949; 119 items; correspondence
University of Connecticut, Storrs, Conn.
- Albert Edmund Waugh papers, 1926-1970; 15 linear ft.; finding aid; correspondence.
Library of Congress, Washington, D.C.
- Harold Leventhal papers, 1932-1980; 94 linear ft. (80,000 items); finding aid; restricted; correspondence.
- Elijah Barrett Prettyman papers, 1901-1971; 62 linear ft. (57,000 items); finding aid; correspondence.