Entities
- J. B. Pound Hotel <Chattanooga, Tennessee>
- Letter from: 7.1.1945, Chattanooga
- J. Gerber & Co, Inc. <New York>
- Letter from: 7.11.1945, Croton-on-Hudson (N.Y.)
- Jakob Hegner Verlag <Leipzig>
- Letter from: 17.4.1933, Comologno (Switzerland)
- Jewish Center <San Francisco>
- Letter from: 22.1.1948, San Francisco (Calif.)
- Letter from: 22.1.1948, San Francisco (Calif.)
- Jewish Club <Concordia>
- Letter from: 24.1.1949, San Francisco (Calif.)
- Jewish Country Club <Baltimore>
- Letter from: 1.7.1947, Baltimore
- Jewish Labour Federation
- Letter from: 28.5.1937, Jerusalem
- John Simon Guggenheim Foundation <New York>
- Letter from: 23.6.1950, Baltimore
- Jüdische Gemeinde <Alexandria>
- Letter from: 30.6.1935, vor Creta