This collection consists of copies of correspondence, articles, diaries, memoirs, and other manuscripts by and about the Blackwell family. Also, a small group of papers, including correspondence, documents, photographs, and printed papers, about the Rice family of New York.

Mitrofanova's manuscripts consist of four bound typescripts: memoirs about her son, Oleg P. Mitrofanov, and the Preobrazhenskiĭ Regiment in World War I; and two essays on the White Cross, entitled "Beloe dvizhenie i Belyĭ Krest"́ and "Belyĭ Krest ́v izgnanii." Also included is Oleg Mitrofanov's diary, which covers his service in the Preobrazhenskiĭ guard in January-July 1917.

The papers consist primarily of the Kosatkin-Rostovskiĭ's memoirs. His manuscript memoirs (150 p.) discuss his life up to 1906. Her typescript memoirs (440 p.) discuss her childhood, career as an actress in St. Petersburg, 1917-1918 in Petrograd, and the emigration in France. Also included are his diary for June-July 1940; a few letters written to him; clippings of his newspaper articles (many signed with the pseudonym "Antar"); and a book with his poetry and with essays dedicated to him; "Krestnym putem k voskresenii︠u︡" (Paris, 1948).

The Shih-hui Hsiung (Shihui Xiong) papers consist of materials documenting Hsiung's life and political career from 1907 to 1974. The highlights of the papers are the manuscripts, which include six volumes of Hsiung's memoir, seven volumes of diaries over 43 years, and approximately 440 original handwritten speech scripts. The photographs and political and military affairs related documents focus on Hsiung's active involvement in the northeast region and abroad from 1930 to 1948. The papers overall consist of correspondence, calligraphy scrolls, diaries, a diploma, documents, letter books, manuscripts of published and unpublished works, maps, newspaper clippings, notes, oversize military notices, poems, photographs, photograph albums, reports, and other materials.