United States secretary of war, member of the Continental Congress from Maryland, Continental Army officer, and physician. Correspondence, financial records, diary, and other papers relating to McHenry's service as United States secretary of war in the administrations of George Washington and John Adams; and as a Continental Army officer, particularly as secretary to George Washington and on the staff of the Marquis de Lafayette.

Commander-in-chief of the French army in America. Correspondence, histories, and other papers chiefly concerning French participation in the American Revolution and the establishment of the French branch of the Society of the Cincinnati. Includes material on the siege of Yorktown, Virginia.