Incidents
- Carlton Ball / St. Moritz / 1925
- Letter from: 19.8.1925, Saint Moritz (Switzerland)
- Champagnefront / Sommer 1918
- Letter from: 17.7.1918, Port du Hem
- Chamsin / Palästina [heißer Wüstenwind]
- Letter from: 13.8.1936, Jerusalem
- Letter from: 8.5.1937, Jerusalem
- Letter from: 12.5.1937, Jerusalem
- Letter from: 23.4.1938, Jerusalem
- Chanah Orloff Exhibition / Wildenstein Gallery New York / 1947
- Letter from: 30.4.1947, Washington
- Chanukkah
- Letter from: 7.12.1941, New York (N.Y.)
- Cohn-Wiener, Ernst / Die Geburt des neuen Kunstideals <Vortrag> / 1918
- Letter from: 24.3.1918, Charlottenburg (Berlin;Germany)
- Conference on Science, Philosophy and Religion in their Relation to the Democratic Way of Life / New York
- Letter from: 3.9.1952, New York
- Coronation Day [Krönung König Georg VI. von England]
- Letter from: 12.5.1937, Jerusalem
- Letter from: 25.5.1937, Jerusalem