Documentation regarding the JDC organization's support of a group of Jewish refugees in Kladovo, aside the frozen Danube River; documentation dated, 1939-1950 - Correspondence between Saly Mayer and Moshe Averbuch Agami, an Aliya Bet activist in Geneva, regarding relief to Jewish refugees who stayed in Kladovo due to the frozen Danube River, winter 1939-1940; - Correspondence between Saly Mayer and Richard Lichtheim, the head of the Jewish Agency in Geneva [regarding the Jewish refugees in Kladovo]; - [Documentation titled] "Ein Brief Von der Donau-Auswanderer - Palaestina", including a description of the life of the refugees on ships in Kladovo, March 1940; - Critical report written by Berthold Storfer, an activist in the Center for Jewish Emigration in Vienna, regarding Averbuch's activities on the subject of aliya to Eretz Israel, 30 April 1940; - Listing of discussions between Berthold Storfer and Kantor (Averbuch's nickname) in Geneva, 11 May 1940; - Documentation regarding the financing of the care for the refugees in Kladovo by the JDC, 1940; - Report by the Association of Jewish Communities of Yugoslavia regarding the refugees in Kladovo (in German), and a summary of the association's activities (in English), 16 January 1941; summary of an announcement regarding the group of refugees in Kladovo, 10 April 1941; - Documentation regarding the claim of the Svaz Makabi (Brit Maccabi) organization in Prague, related to 47,000 dollars donated by the JDC organization on behalf of the immigrants to [Eretz] Israel, 1947-1950.