Community and political activists
- Ekaterina Breshko-Breshkovskaia's collection reflects her post-1917 activities in Prague where she was active in efforts to aid the Russian refugee community. [See; Edward Kasinec and Lyubov Ginzburg. “American Humanitarian Aid and Interwar Subcarpathian Rus’: The Letters from Ekaterina (“Babushka”) Breshko-Breshkovskaia to Irene Dietrich at the New York Public Library,” A Jubilee Collection: Essays in Honor of Professor Paul Robert Magocsi on his 70th Birthday (Uzhhorod – Prešov – New York: Valerii Padiak Publishers, 2015), 317–28]
- Geza Garrison Gaspar (1887- ) was a Hungarian journalist who emigrated to the U.S. in 1920 and worked as a writer and editor. From 1927 to 1956 he was science editor for a Hungarian-American newspaper.
- Jacques Kayaloff Papers 1829-1989 include original documents, copies, and print materials relating to the Armenian Etat Major of the 1920s and Armenian culture in general.
- More than a hundred of Otto and Vlasta Kraus scrapbooks, 1946-1999 consist of clippings and photographs about Czech émigré people and their culture in former Czechoslovakia and abroad as well as American political and cultural life in 1948-1975 years.
- The Jan Papánek collection reflects the activities of a prominent member of the democratic postwar Government of Czechoslovakia who later devoted his efforts to the refugees from the Stalinist regime.
- Rosika Schwimmer (1877-1948) was a Hungarian-born writer and political activist who spent her life working for the causes of feminism, pacifism, and world government. See also Schwimmer-Lloyd collection 1852-1980, 1912-1983 [bulk 1890-1960] which consists chiefly of correspondence and papers of Rosika Schwimmer, Lola Maverick Lloyd (1875-1944), and their associates. Many photographs from the latter collection have been digitized.