The collection consists of approximately 100 articles by Seni︠u︡tovich (often signed Seni︠u︡tovich-Berezhnyĭ) on topics including genealogy, heraldry, military history, the history of Russia and the Ukraine, and the Russian emigration. There is also correspondence both to and from Seni︠u︡tovich, newsletters from the Ukrainian Genealogical and Heraldic Society, an autobiographical essay by Seni︠u︡tovich, and three photographs.