Approximately 12,000 letters to Allan Nevins from various correspondents including James Truslow Adams, Franklin Delano Roosevelt, Harry S. Truman, Willa Cather, Frances Folsom Cleveland, Van Wyck Brooks, Robert Frost, Newton D. Baker, Archibald MacLeish, John D. Rockefeller, Jr., Carl Sandburg, and Henry Wallace; notes and typescripts for Nevins' books including Emergence of Lincoln, The Ordeal of Democracy, Rockefeller, and History and Historians, with notes by editor Ray A. Billington; miscellaneous transcripts, clippings, newspapers, and photographs. Also, autograph letters and manuscripts by presidents, Civil War figures, financiers, politicians, and authors. There are also the Brand Whitlock World War I Diaries and letters to him by such people as Herbert Hoover, Gen. John J. Pershing, and others.

Letters, manuscripts, and documents collected by Crary primarily for use in the writing of her book on American Tories, THE PRICE OF LOYALTY (1973). Many of the items relate to the Continental Army, and especially to the Company of Captain Nathan Peirce in the Green Mountain Boys Regiment of Seth Warner (1743-1784). Also included are letters from John Quincy Adams (1767-1848), Indian agent Israel Chapin, William Harris Crawford (1772-1834), Charleston merchant and loyalist John Cruden, Marquis de Lafayette (1757-1834), Woodbury Langdon (1738/9-1805); and others. Also, documents relating to the commands of Benedict Arnold, John Burgoyne, Lord Cornwallis, David Wooster, and many others; deeds to land in Montgomery County, N.Y. signed by Jeremiah Van Rensselaer (1738-1810), and others; an orderly book belonging to Ichabod Norton; and a journal kept on Gibralter, apparently by the governor, George Augustus Eliott (1717-1790). A volume of muster rolls and troop encampment data of the Army of Great Britain contains copies of letters intercepted from Alexander Hamilton and Gouverneur Morris.

Fifty-four letters of and pertaining to members of the Ellison family, chiefly those of Colonel Robert Ellison to his brother Henry Ellison dealing with the former's military activities abroad and in America, 1733-1748, and the letters of Henry to his sons, Henry and Robert, mostly treating the political news of the day in England, 1759-1774. Also the diary of Robert, son of Henry, and various documents.

The papers relate chiefly to the business, financial, real estate, military, civic and personal activities of Nicholas Fish. There are letters from various military figures concerning army provisions during the Revolution, letters relating to lands given to Fish for his services during the war, twenty letters from various individuals to George Clinton (1739-1812), and ten letters to DeWitt Clinton. The Hamilton Fish letters deal with business matters of his father, Nicholas, after his death. There are a few personal letters from several family members and a diary of Nicholas Fish from 1784. The documents consist of real estate and financial matters of the family as well as various petitions on matters of a civic nature

Personal, business, and legal letters; manuscripts including prose, poetry, and diaries; and documents including deeds, receipts, invoices, and account books. The 18th century materials focus on the personal and business correspondence of Calvin, Jotham, and Martin Gay, sons of Ebenezer Gay who were engaged in shipping between New England and the Maritime Provinces. There are occasional letters of Jotham and Martin referring to the American Revolution. The Otis family correspondence of the 18th century, likewise, is of a purely routine and personal nature. There are only four letters of Col. James Otis, and only two of his son, James. Gay and Otis family interests intertwine during the 19th century with the marriage of Mary Allyne Otis to Ebenezer Gay, who are among the chief correspondents of this century, along with their children including Sidney Howard Gay and Winckworth Allan Gay. The Otis correspondence centers around business, real estate, and personal interests of Mary A. Otis Gay's brothers John, Joseph, and William Otis.

The Kent Family Papers contains letters, manuscripts, journals, and documents of the Kent family. The bulk of this material is the papers of James Kent and of William Kent. Also included are autographs, letters, and various ephemera collected by the Kent, Pinckney, and Webster families.

1992-1995 Additions: 138 volumes of his diaries, 1920-1994, have been added, as well as 12 letters from W.A. Craigie concerning new entries for the Oxford English Dictionary, 1 drawing in the style of John Leech, 2 19th century drawings, the manuscript of his "Young John of Gaunt; a poem in fourteen cantos", 22 engraved American portraits, 5 maps of the American Civil and Revolutionary Wars, 3 scrapbooks, World War I to 1976, his commonplace book, 1927-1990, several of his published books, and "The Sheriff's Prisoner", an autobiographical account of his 8 months in Brixton Prison for Obscene Libel on the publication of "Guido and the Girls", along with letters and documents re. this case.