Lansing family papers including a New York State Supreme Court Register of Robert Lansing, c.1820; obituary scrapbook, 1880; Emma Lansing's photo album from her World War I Red Cross work in Europe; legal and financial papers, 1849-78; scrapbooks of clippings and memorabilia on Lansing and his political career including the Fur-Seal Arbitration, Paris, 1893, the inaugural ball of 1897, the Bering Sea Claims Commission, 1896-97; also an appointment book for luncheon and dinner engagements, 1891-1912; and a book of ms. poems about the PK, a men's social group to which Robert Lansing belonged, 1906.