- De Waal, Edmund -- Correspondence
- Ritvo, Max, 1990-2016 -- Correspondence
- Dramatists, American -- 20th century -- Correspondence
- Dickinson, Emily, 1830-1886 -- Correspondence
- Poets, American -- 20th century -- Correspondence
- Mothers and sons -- United States -- Correspondence
- Biologists -- United States -- Correspondence
- Vanderbilt, Gloria, 1924-2019 -- Correspondence
- Women dramatists, American -- 20th century -- Correspondence
- Roosevelt, Eleanor, 1884-1962 -- Correspondence
- Kennedy, John F., John Fitzgerald, 1917-1963 -- Correspondence
- Mandela, Nelson, 1918-2013 -- Correspondence
- John, Gwen, 1876-1939 -- Correspondence
- Williams, Marie, 1885-1931 -- Correspondence
- Couples -- United States -- Correspondence
- Thoreau, Henry David, 1817-1862 -- Correspondence
- Naturalists -- United States -- Correspondence
- Churchill, Winston, 1874-1965 -- Correspondence
- Publishers and publishing -- United States -- Correspondence
- Soccer fans -- Norway -- Correspondence
- Wilder, Laura Ingalls, 1867-1957 -- Correspondence
- Sartre, Jean-Paul, 1905-1980 -- Correspondence
- Monroe, Marilyn, 1926-1962 -- Correspondence
- Alexander, Eileen, 1917-1986 -- Correspondence
- Plath, Sylvia -- Correspondence
- French -- Germany -- Berlin -- Correspondence
- Cancer + Patients -- Correspondence
- Juliet (Fictitious character) -- Correspondence -- Drama
- Authors, French -- 19th century -- Correspondence
- Sachs, Nelly -- Correspondence
- Williams, Tennessee, 1911-1983 -- Correspondence
- Hickok, Lorena A. -- Correspondence
- Adams, Abigail, 1744-1818 -- Correspondence
- African American authors -- Correspondence
- Le Carré, John, 1931-2020 -- Correspondence
- Wilson, Edward O. -- Correspondence
- Novelists, American -- 20th century -- Correspondence
- Journalists -- United States -- Correspondence
- Gellhorn, Martha, 1908-1998 -- Correspondence