Consists of selected correspondence, manuscripts, and galler proofs of W. S. Merwin, one of the most influential American poets of the latter 20th century.

Consists of a collection of photographs of World War I scenes in France that were tipped into photo albums. Some of them have appeared in published works.

Consists of selected correspondence, manuscripts, and other material related to World War II.

The Woodrow Wilson Collection consists of Wilson holdings which have been acquired by the Princeton University Library Special Collections gradually over many years by purchase and gifts from many sources. The collection is rich in material prior to Wilson's presidential years, although it is not limited to this period; researchers will find materials documenting both the public and private life of Woodrow Wilson. Various types of information written by or about Wilson are present in the collection, including manuscripts, addresses, articles, correspondence, telegrams, legal documents, booklets, pamphlets, photographs, portraits, cartoons, newspapers and scrapbooks.

The Woodrow Wilson Additional Materials consist of materials that the Seeley G. Mudd Manuscript Library has acquired on Woodrow Wilson since the mid-1990s.

William James Linton was an English-born engraver and political activist. The collection consists of 36 of Linton's letters, related correspondence, and other miscellaneous materials. Three manuscripts of poems, possibly Linton's, a manuscript of a novel by Elizabeth Fitzgerald, and unidentified artwork complete the collection.

Consists primarily of twenty-seven years of correspondence between music scholars J. Merrill Knapp and Winton Dean regarding George Frideric Handel's operas and their professional work and writings about them.

Contains selected correspondence of economics professor Winthrop M. Daniels (Princeton Class of 1888).

Consists of letters and drawings of William Yarrell, a nineteenth-century British naturalist, and related printed matter.

Consists of selected autograph manuscript poems and correspondence of William Wordsworth, one of England's most respected poets of the nineteenth century.

Consists chiefly of correspondence of the British poet William Watson with his publisher, Grant Richards.

Consists of four commonplace books kept by William Vans Murray, an American diplomat and minister to the Netherlands, during the years 1786 to July of 1800.

Consists of selected papers of W. Oliver Strunk, who was a professor of music at Princeton University (1937-1966).

The William Michael Rossetti Collection consists of manuscripts, sketches, correspondence, and miscellanea of the English art critic and essayist William Michael Rossetti (1829-1919).

Consists of envelopes both used and unused (also known as covers), letters, postcards, documents, postage stamps, and a variety of other philatelic material from around the world as collected and annotated by the Reverend William Hogarth Tower (1871-1950). The collection spans the topics of English Postal History, United States Postal History, War Covers, Philatelic Miscellany, and Franking.

Consists of selected correspondence and poetical manuscripts of English poet William Hayley, the biographer and friend of William Cowper.

Consists of miscellaneous academic records and manuscripts of William Francis Magie, distinguished Princeton physics professor and dean.

Consists of manuscripts and letters of American novelist and Nobel Prize winner William Faulkner and related materials, including manuscripts of Maurice Coindreau's translation into French of four Faulkner novels.

Consists of correspondence and selected manuscripts of the American critic, novelist, poet, and playwright William Dean Howells.

William Charles Macready (1793-1873) was an English actor and theater manager. The collection consists of selected correspondence, letters written by members of his family, and some letters, articles, and miscellaneous documents about him. A significant number of letters (45) are from Macready's friend, William Frederick Pollock.