College speeches, notebooks and class exercises relating to King's undergraduate years at Columbia, letters written to and by King during his period in London, documents and incoming correspondence relating to his legal practice, correspondence from his career in Congress, speeches and petitions relating to Maine politics, and materials relating to statehood for the District of Maine, the War of 1812, and related contemporary events. The majority of the correspondence consists of letters written to King by various people, but there are also a number of letters, documents, and miscellaneous papers written by King in the collection.

Letters, manuscripts, documents, and letterbooks of Jay and of many members of his family. The letters touch on every aspect of American life and government of the period, and contain correspondence from such prominent individuals as John Adams, George Clinton, James Duane, Benjamin Franklin, Alexander Hamilton, Thomas Jefferson, Rufus King, John Paul Jones, Marquis de Lafayette, Robert B. Livingston, William Livingston, Gouverneur Morris, Robert Morris, Edmund Randolph, Philip Schuyler, and George Washington. There are approximately 500 letters from Jay, primarily drafts of correspondence to the persons listed above, as well as his correspondence as Secretary of Foreign Affairs, 1784-1789. The manuscripts and documents include many reports, commissions, and diplomas, as well as a draft copy of THE FEDERALIST Number 5 and Jay's oath of office as Chief Justice of the United States Supreme Court; also included are manumission documents, and a group of documents from Trinity Church, where his father was a vestryman from 1715 to 1785. The collection includes copies of Jay's letter book as Secretary of State, 10 Oct. 1788-25 Dec. 1792, and of four letters from John Armstrong, 19 June-27 Dec. 1810; and a copy of the pair of silverplated candlesticks from the Treaty of Paris, 3 Sept. 1783, reproduced by the Smithsonian Institution.

Office records for the publication project, and photocopies and microfilm copies of Jay letters and related documents.

Letters from King to Dr. Daniel Kilham of Newburyport, Mass. The letters refer to the personal affairs of the two men and to a large extent to the matters of contemporary diplomacy and politics. Among the subjects touched upon are the peace treaty with England, the Barbary powers, Spanish remonstrance against U.S. navigation of the Mississippi, and Mr. Adams' reception at the British court. Four of the letters bear manuscript copies of Kilham's reply.