Most of the materials are from the years after World War II, and concern the organizations with which Lampe was affiliated. There is correspondence from members of the Romanov family, especially Grand Prince Vladimir Kirillovich, and from Alekseĭ Arkhangelśkiĭ, Ivan Ilín, Vasiliĭ Orekhov, and others of Lampe's emigre military and monarchist colleagues. Photographs deal with such topics as the Romanov family, the Civil War, the emigration, World War II, and with Lampe himself. Besides the post-1945 materials in the collection, smaller groups of materials concern 18th and 19th century Russian military history (including a letter signed by General Aleksandr Suvorov), the interwar period, and ROVS in Germany during World War Il.

The collection chiefly consists of Goldenweiser's American legal case files. There are also case files from his German years, and substantial materials on his research into the condition of Russian refugees and refugee problems in general in the 1930s. Much of the correspondence from the late 1930s and early 1940s concerns Jews in Germany and occupied Europe. Correspondents in the collection include Mark Aldanov, Abraham Cahan, Antal Dorati, Georgiĭ Florovskiĭ, Tatʹi︠a︡na Frank, Vladimir and Vera Nabokov, and Mikhail Karpovich; there are 1 or 2 items each from Dwight D. Eisenhower, Eleanor Roosevelt, Herbert Lehman, and Nikolaĭ Losskiĭ. Letters, manuscripts, and documents by Vera Nabokova contain considerable information on her and her husband's lives in Germany and in the United States. Many of the American case files concern (as does much of the Nabokova material) individual claims for reparations from Germany after World War II.