- Novelists, Canadian -- 20th century -- Correspondence
- Authors, American -- 20th century -- Correspondence -- Drama
- Textile workers -- New England -- Correspondence
- Couples -- United States -- Correspondence
- Dickinson, Emily, 1830-1886 -- Correspondence
- Poets, American -- 20th century -- Correspondence
- Artists -- United States -- Correspondence
- Soldiers -- Massachusetts -- New Bedford -- Correspondence
- Paston family -- Correspondence
- De Waal, Edmund -- Correspondence
- Soldiers -- United States -- Correspondence
- Holmes, Sherlock -- Correspondence -- Fiction
- Thoreau, Henry David, 1817-1862 -- Correspondence
- Naturalists -- United States -- Correspondence
- Women artists -- United States -- Correspondence
- Wheeler, Sara -- Correspondence -- Juvenile literature
- Mothers and sons -- United States -- Correspondence
- Hickok, Lorena A. -- Correspondence -- Fiction
- Biologists -- United States -- Correspondence
- Vanderbilt, Gloria, 1924-2019 -- Correspondence
- Gay men -- United States -- Correspondence
- Cooper, Anderson -- Correspondence
- Juliet (Fictitious character) -- Correspondence -- Drama
- Orwell, George, 1903-1950 -- Correspondence
- Kameny, Frank, 1925-2011 -- Correspondence
- Michelangelo Buonarroti, 1475-1564 -- Correspondence
- Publishers and publishing -- United States -- Correspondence
- Gooding, James Henry, 1837-1864 -- Correspondence
- Reagan, Nancy, 1923- -- Correspondence
- Selznick, David O., 1902-1965 -- Correspondence
- Alexander, Eileen, 1917-1986 -- Correspondence
- Rhodes, Elisha Hunt, 1842-1917 -- Correspondence
- Authors, Canadian -- 20th century -- Correspondence
- Poets, American -- 19th century -- Correspondence
- O'Keeffe, Georgia, 1887-1986 -- Correspondence
- Motion picture actors and actresses -- United States -- Correspondence
- Chase-Riboud, Barbara -- Correspondence
- Adams, Abigail, 1744-1818 -- Correspondence
- Koh, EJ, 1988- -- Correspondence
- Dog owners -- Correspondence
- Presidents' spouses -- United States -- Correspondence -- Fiction
- Booksellers and bookselling -- Great Britain -- Correspondence -- Drama
- Wilson, Edward O. -- Correspondence
- Sexton, Anne -- Correspondence