Collection includes correspondence, manuscripts, documents, photographs, and printed materials. There are letters from Rodion Berezov, Aleksandra Tolstai︠a︡, I︠A︡kov T︠S︡vibak, and Mark Weĭnbaum as well as one letter each from Georgiĭ Grebenshchikov, Dmitriĭ Shakhovskoĭ, and Igor ́Sikorskiĭ. There is a poem and letter drafts by Matviĭchuk, dating from 1945-1973. The arranged manuscripts include a brief memoir by Matviĭchuk entitled "Ushedshee." The essay discusses his family, the Civil War, and life in the Soviet Union during the 1920s. Matviĭchuk left the Soviet Union during World War II, and eventually emigrated to the United States. There is a box of clippings and several boxes of emigre newspapers and journals, many of which contain essays by Matviĭchuk.