Correspondence, diary, speeches, poems, business papers, account book, and other material relating principally to Law's interest in the development of Washington, D.C., and the promotion of a national currency. Other topics include the Bank of the United States, the War of 1812, the Napoleonic Wars. and Law's dispute with Alexander Scott in 1817 over the sale of two slaves, Dennis and Walter Thomas, whom Law represented before a Maryland court on a petition to secure their freedom. Includes a small group of papers (1829-1864) of Law's grandson, Edmund Law Rogers (1818-1896). Correspondents include Law's wife, Elizabeth Parke Custis Law, his sons, Edmund Law and John Law, James Barry, Benjamin Henry Latrobe, John F. Mifflin, Robert Oliver, and members of the Westcott family.