Papers include typed carbons of correspondence, memoirs, speeches, and biographical materials. The correspondence consists of letters to and from Crane, 1869-1939, and telegrams and letters to his wife upon his death. The memoirs include information on his diplomatic service and travels. The speeches, 1910-1930, are largely based on his travels and activities. There are diaries by other persons of his trips to Albania, Russia in 1921, and to the Near East. Finally, biographical materials include editorials, articles, and speeches. While a sizable amount of material concerns Russia, the collection includes information on his other activities as well.

Correspondence, manuscripts, documents, photographs, artwork, objects, and printed material. Included among the list of 37 cataloged correspondents are: Vera Brittain, Edward Gordon Craig, Clarence Darrow, Havelock Ellis, Augustus John, Emmeline Pankhurst, Edward Steichen, Gertrude Stein, Algernon Charles Swinburne, Sybil Thorndike, Alec Waugh, and H. G. Wells. The cataloged manuscripts include a poem by Witter Bynner entitled "Hay Wagon." There is a large selection of Stephen's writings (poetry, novels, plays, articles, biographies, memoirs) including drafts of a proposed biography of his father, a bound volume of his own memoirs, numerous notebooks, and "Mount Joy," a description of life on Dominica. His photographs and paintings are well represented, with 6 albums of photographs and 2 boxes & 1 folder of approximately 200 paintings and sketches. The printed material includes works by Stephen, his father and his mother.