The manuscripts include an outline, in 6 notebooks, of Shuberskiĭ's memoirs for 1875-1948; and, in 10 notebooks, notes on the reign of Nicholas II.

The papers consist of correspondence and notes. The correspondence is made up of letters to I︠A︡khontov concerning his memoirs about the Council of Ministers from pre-revolutionary officials, including Vladimir Kokovt︠s︡ev, Pavel Ignatév, and Vsevolod Shakhovskoĭ. The notes are minutes taken at the meetings of the Council of Ministers; these exist as both the original handwritten notes and as typed copies. Finally, there is a brief memoir by I︠A︡khontov concerning World War I, and a printed copy of the announcement by Nicholas II that World War I had been declared.

Ivanov's manuscript memoirs (550 p.) touch on the following topics: the attempts by the Duma to convince Nicholas II to abdicate in February, 1917; Petrograd in 1917-1918; the Civil War on the Northwest Front, including relations between the Whites and the new Estonian republic (Ivanov also discusses the Northwest Front of the Civil War in a book "O sobytiiakh pod Petrogradom v 1919-om godu" Berlin, 1921.); his internment in the French concentration camp at Vernet in 1939-1940; German use of former White soldiers during WW II; and the war in the Smolensk area in 1942-1943. Notably collection includes typescritp draft of Grand Dukes' Mikhail Aleksandrovich, Kirill Vladimirovich and Pavel Aleksandrovich Manifesto of March 1 1917 (manifesto on granting constitution) with N. N. Ivanov's holograph notes and P. Miliukov's signature. There is also a letter to Ivanov from General Johan Laidoner, commander of the Estonian army.

Related materials can be found in the following Bakhmeteff Archive collections: Arkhangel'skii, Kutepov, Lampe, ROVS-North America, and Shatilov.