Collection
- Henry Cabot Lodge, The Coming Treaty of Peace, 19181
- Henry Peter Brougham, Baron Brougham and Vaux papers, 1807-1864 (majority within 1824-1864)1
- Henry Vignaud papers, 1840-1922 (majority within 1860-1915)1
- Hilon A. Parker family papers, 1825-1953 (majority within 1853-1911)1
- Ira B. Sampson collection, 1864-18841
- James G. Birney papers, 1816-1884 (majority within 1820-1856)1
- James M. Holloway typescripts, 1861-1961 (majority within 1861-1898)1
- James M. Smith family collection, 1834-18891
- James Naismith collection, 1893-1962 (majority within 1917-1961)1
- John D. Dingell, Jr. papers, 1922-2017 (majority within 1955-2014)1
- John Holcombe III papers, 1942-1946 (majority within 1942-1945)1
- John M. Sharp collection, 1863-18651
- John Russell papers, 1793-1866 (majority within 1804-1866)1
- John V. Lansing papers, 1842-1917 (majority within 1842-1880)1
- John W. Croker papers, 1765-1860 (majority within 1765-1857)1
- John W. Echols collection, 1890-1932 (majority within 1890-1898)1
- Leopold Mayer family collection, 1864-1970 (majority within 1885-1909)1
- Lewis Carlisle Mead typescripts, 1862-1910s1
- Lewis Cass papers, 1774-19241
- Lyman Trumbull family papers, 1799-1924 (majority within 1859-1890)1