This collection contains materials collected by David Trotsky relating to the Jewish community of Belgium in the inter-war period. Materials include printed documents, posters, reports, meeting minutes, and newspaper clippings, mainly pertaining to the Jews of Brussels and Antwerp.

This collection contains the personal and professional papers of Abbo Ostrowsky, including correspondence with many important figures from the art world, several of whom had been students of Ostrowsky at the Educational Alliance Art School. There is also information about Ostrowsky’s career as an artist, including some original artwork, exhibition catalogues, and photographs. These materials show Ostrowsky’s significant influence on modern Jewish art and on the success of the Educational Alliance as an institution.

This collection contains documents relating to Isaac A. Hourwich’s role as an economist, publicist, statistician, lawyer, author, and authority on immigration, as well as his involvement with the labor movement and the formation of the American Jewish Congress. There are reports, minutes of meetings, memoranda, clippings and correspondence, and manuscripts and articles about Jewish labor, Socialism, Russia, Marxism, immigration, and other subjects. These materials demonstrate Hourwich’s important role in American labor, immigration theory, and political and economic theory.

This collection contains the personal and professional papers of rabbi, Hebrew scholar, author, and editor Israel Elfenbein. These materials include correspondence with and relating to congregations, Hebrew periodicals, organizations, Elfenbein’s writings, personal correspondence, sermons, clippings, and manuscripts by Elfenbein and by other writers.

This collection, which is a sub-group of RG 245 HIAS, includes the records of the main HICEM office in Europe prior to and during World War II. There are also some records from the post-war period relating to the dissolution of HICEM, HIAS’s taking over of HICEM’s operations and HIAS’s work with displaced persons.

This collection contains the administrative records of the Hebrew Actors’ Union (HAU), the professional union of Yiddish theater performers, which was based in New York City. Materials include correspondence, membership materials, financial records and members’ dues information, meeting minutes, and a great deal of sheet music and play scripts of performances from the Yiddish theater. A majority of these performances were in New York City, but there are also materials from Philadelphia, Chicago, Boston, Toronto, and Montreal, as well as various locations in Israel and South America.