Correspondence, diaries, and speeches of Marriner. The correspondence contains letters from Charles Francis Adams, Brendan Bracken, Charles G. Dawes, Walter E. Edge, James A. Farley, Myron T. Herrick, Frank B. Kellogg, Dwight W. Morrow, Henry L. Stimson, Jesse Isidor Straus, and various members of the Roosevelt family. Marriner's diaries, covering the years 1918-1936, in twenty volumes, cover the periods he spent in Stockholm, Bucharest, Budapest, Washington, London, Paris, and Beirut. Also, a file of Marriner's speeches, his autograph guest book, a typescript copy of his Harvard University doctoral dissertation, and a photograph; and a microfilm containing letters of condolence and obituary notices at the time of Marriner's death in 1937.