- Soldiers -- Great Britain -- Correspondence
- Davis, Eliza -- Correspondence -- Juvenile literature
- Bonhoeffer, Dietrich, 1906-1945 -- Correspondence
- Children -- Ireland -- Correspondence -- Juvenile literature
- Gunn, Thom -- Correspondence
- Women civil rights workers -- United States -- Correspondence
- Authors, English -- 20th century -- Correspondence
- Women -- New England -- Correspondence
- Dickinson, Emily, 1830-1886 -- Correspondence
- Poets, American -- 20th century -- Correspondence
- Women journalists -- United States -- Correspondence
- Travel writers -- Great Britain -- Correspondence
- Baker, Benjamin Webb, 1841-1909 -- Correspondence
- Breed, Clara E., Clara Estelle, 1906-1994 -- Correspondence -- Juvenile literature
- Holmes, Sherlock -- Correspondence -- Fiction
- Kennedy, John F., John Fitzgerald, 1917-1963 -- Correspondence
- Mandela, Nelson, 1918-2013 -- Correspondence
- Authors -- Correspondence
- Gogh, Vincent van, 1853-1890 -- Correspondence -- Juvenile literature
- Textile workers -- New England -- Correspondence
- Mothers and sons -- United States -- Correspondence
- Mitford, Jessica, 1917-1996 -- Correspondence
- Hickok, Lorena A. -- Correspondence -- Fiction
- Vanderbilt, Gloria, 1924-2019 -- Correspondence
- Motion picture actors and actresses -- United States -- Correspondence
- Adams, Abigail, 1744-1818 -- Correspondence
- Alifirenka, Caitlin -- Correspondence
- African American authors -- Correspondence
- Poitier, Sidney -- Correspondence
- Washington, George, 1732-1799 -- Correspondence
- Gogh, Vincent van, 1853-1890 -- Correspondence
- Serial murderers -- Correspondence
- Dickinson, Susan Huntington, 1830-1913 -- Correspondence
- Lacy, Allen, 1935-2015 -- Correspondence
- Lebarie, Ayele, 2005- -- Correspondence
- Gardeners -- New Jersey -- Correspondence
- Wilder, Laura Ingalls, 1867-1957 -- Correspondence
- Painters -- United States -- Correspondence
- Tyson, Neil deGrasse -- Correspondence
- Douglas, A. I., Anne Isabel -- Correspondence
- Tolkien, J. R. R., John Ronald Reuel, 1892-1973 -- Correspondence
- Hollingsworth, Amy -- Correspondence
- Presidents' spouses -- United States -- Correspondence -- Fiction
- Novelists, American -- 20th century -- Correspondence
- Generals -- United States -- Correspondence
- White, E. B., Elwyn Brooks, 1899-1985 -- Correspondence
- Koh, EJ, 1988- -- Correspondence
- Women poets, American -- 19th century -- Correspondence
- Ciaglia, Anthony -- Correspondence
- Johnson, Helene, 1906-1995 -- Correspondence