The Auguste Rodin Collection contains over fifty Rodin letters, cards, telegrams, and notes, of which about half are in the hand of the sculptor.

This collection contains the manuscripts, correspondence, drawings, and other papers of twentieth-century Guatemalan author Augusto Monterroso, who spent most of his life as a writer in Mexico.

The Auxiliary to the Isabella McCosh Infirmary is a volunteer fundraising organization which supports Princeton University Health Services. Founded in 1902 as the Ladies Auxiliary to the Isabella McCosh Infirmary, the group has been responsible for shaping student health at Princeton University for over a century. The records contain meeting minutes, annual reports, correspondence, and subject files which pertain to the McCosh Infirmary, or to the organization itself.

Consists primarily of correspondence representing five generations of the Bache and Hodge families as well as members of the Scott and Wistar families of Princeton and Philadelphia.

Consists of correspondence, photographs, and printed matter concerning the Baron and Baroness Hyde de Neuville.

Consists of over 100 cartons and boxes containing correspondence, legal documents, photographs, printed matter, and other material, which document both the careers and personal lives of Princeton graduates Daniel Moreau Barringer and his son, Brandon Barringer. Much of the material about Daniel Moreau Barringer focuses on the Meteor Crater in Arizona, which he spent a large part of his career studying and promoting.

Consists of the typed manuscripts of two books of philosophy by American professor Barrows Dunham: Man Against Myth and Giant in Chains.

Consists of selected letters by authors and publishers addressed to American reporter and editor Barton Currie and his wife, Florence.

Consists of photographs of Middle East scenes collected by Bayard Dodge, president of the American University in Beirut, Lebanon.

Among Princeton University traditions, the Beer Jacket worn by graduating seniors stands as one of the most unique and most enduring. The collection consists of materials documenting the evolution of beer jacket designs throughout the greater part of the 20th century.

Consists of letters by American novelist Benedict Thielen (Princeton Class of 1923) to Frederic Roderigo Gruger, Jr.

Consists of selected correspondence and drafts and/or corrected typescripts of short stories, articles, and five novels of American novelist Benedict Thielen.

The Benjamin Franklin Bunn Papers consist of financial, business and administrative records which Bunn maintained for many Princeton clubs and associations during his 50 years at Princeton University. The papers also contain correspondence with many Princeton and Phillips Exeter Academy classmates, Princeton administrators, and family members. The Triangle Club material contains letters from F. Scott Fitzgerald and notable members of stage and screen.

Benjamin Strong was a prominent New York banker who was instrumental in the foundation and success of the Federal Reserve Bank. This collection contains records pertaining to the former Benjamin Strong Collection of Foreign Public Finance in Princeton University Library, which was funded by Strong with the objective of acquiring books and original source material chronicling the development of foreign public finance, central banking, and international trade.

Bernard M. Baruch was a financier and public adviser. This collection consists primarily of public papers relating to Baruch's various involvements in government affairs.

Bernardo Canal Jeijóo was a lawyer and poet in Argentina during the twentieth century. His correspondence consists of letters with other writers and artists about both the arts and everyday life.

Consists of manuscripts of poems, short stories, essays, and criticism, and correspondence by Ortiz de Montellano; correspondence, manuscripts of poetry, and typescript copies of poetry, short stories, and essays by others; and printed material.

The Princeton University Bicentennial Celebration was a year-long series of events that began on September 22, 1946 with a sermon delivered by Geoffrey Francis Fisher, Lord Archbishop of Canterbury, in the University Chapel and ended with an address by President Truman in front of Nassau Hall at the June 17, 1947 Concluding Bicentennial Convocation. The Bicentennial Celebration Records contain correspondence, writings, speeches, press-releases, pamphlets, reports, newspaper clippings, tickets, transcripts, watercolor and pencil sketches and various other materials documenting the 1946-1947 Princeton University Bicentennial Celebration.

Blair Clark was a journalist and political activist who held many positions in both spheres. His papers contain items related to his employment with CBS News, his role in the establishment of the Edward R. Murrow Chair at Harvard University's Kennedy School of Government, and personal correspondence.

Consists of a group of family papers and genealogical research collected by members of the Blair family, a prominent political family in the United States in the 19th century. Materials relate to Francis Preston Blair Sr. (1791-1876) and his descendents, including Frank P. (Francis Preston) Blair Jr., Apolline Alexander Blair, Francis Preston Blair III, Andrew A. Blair, James L. Blair, Gist Blair, Emily Blair Henrotin, and others. Included are correspondence, documents, genealogical research, photographs, printed materials, and writings related to politics, military service, family history, and domestic life.