Correspondence with:
- The American Joint Distribution Committee
- Credit Cooperatives in Buenos Aires
- Aid Organization for Jewish Immigrants
- Jewish Organization of Survivors of the Nazi Persecution
- Jewish-Argentine Organization (Peronistic Jews) O.I.A.
- Central Organization to Aid Victims of World War Two
- Jewish Hospitals, Nursing Homes and Orphanages
- Association of Immigrants from Bialystok
- Bnai Brith Order
- World Jewish Congress
- Miscellaneous