Places
- Cannes
- Letter from: 27.1.1933, Berlin
- Letter from: 27.1.1933, Cannes (France)
- Letter from: 27.1.1933, Cavalière (France)
- Letter from: 28.1.1933, Cannes (France)
- Letter from: 29.1.1933, Berlin-Spandau
- Letter from: 30.1.1933, Berlin-Spandau
- Letter from: 1.2.1933, Cannes (France)
- Letter from: 1.2.1933, Cannes (France)
- Letter from: 15.2.1933, Antibes (France)
- Letter from: 28.5.1933, Marseille
- Carmel
- Letter from: 11.6.1946, San Francisco
- Letter from: 2.7.1947, Washington
- Letter from: 5.7.1947, San Francisco (Calif.)
- Letter from: 8.7.1947, Carmel (Calif.)
- Letter from: 00.1.1948 [o.D.], San Francisco (Calif.)
- Letter from: 25.1.1948, San Francisco (Calif.)
- Letter from: 17.6.1950, San Francisco (Calif.)
- Letter from: 21.6.1950, San Francisco (Calif.)
- Letter from: 22.6.1950, Baltimore
- Letter from: 27.6.1950, San Francisco (Calif.)
- Letter from: 7.7.1950, Ojai (Calif.)
- Letter from: 14.8.1950, San Francisco
- Letter from: 17.7.1951, San Francisco (Calif.)
- Letter from: 16.9.1955, Tacoma (Wash.)
- Cavalière
- Letter from: 12.8.1932, Hyères
- Letter from: 13.8.1932, Cavalière
- Letter from: 18.8.1932, Comologno - Tessin
- Letter from: 21.1.1933, Berlin W
- Letter from: 22.1.1933, Zurich (Switzerland)
- Letter from: 24.1.1933, Lyon (France)
- Letter from: 27.1.1933, Cannes (France)
- Letter from: 27.1.1933, Cavalière (France)
- Letter from: 29.1.1933, Berlin-Spandau
- Letter from: 30.1.1933, Berlin-Spandau
- Letter from: 1.2.1933, Cannes (France)
- Letter from: 8.5.1933, Paris (France)
- Letter from: 28.5.1933, Marseille
- Letter from: 30.5.1933, Cavaliere (France)
- Letter from: 30.5.1933, Cavalière
- Letter from: 31.5.1933, Cavalière
- Letter from: 2.6.1933, Cavalière
- Letter from: 2.6.1933, Amsterdam (Netherlands)
- Letter from: 3.6.1933, Cavalière
- Letter from: 6.6.1933, Cavalière
- Letter from: 7.6.1933, Amsterdam (Netherlands)
- Letter from: 24.6.1933, London (England)
- Letter from: 26.6.1933, o.O. (im Flugzeug zwischen London und Paris)
- Letter from: 30.8.1933, Paris
- Letter from: 1.9.1933, Paris
- Letter from: 1.9.1933, Paris
- Letter from: 24.10.1933, Paris
- Letter from: 25.10.1933, London (England)
- Letter from: 19.4.1934, Brüssel
- Letter from: 28.5.1937, Jerusalem
- Letter from: 27.6.1939, Jerusalem
- Chemnitz
- Letter from: 14.2.1911, Königsberg (Germany)
- Letter from: 9.6.1915, Chemnitz
- Letter from: 19.6.1915, Dresden (Germany)
- Letter from: 1.7.1915, Charlottenburg
- Letter from: 4.7.1915, Charlottenburg
- Letter from: 5.7.1915, Charlottenburg
- Letter from: 13.7.1915, Charlottenburg
- Letter from: 14.7.1915, Charlottenburg
- Letter from: 15.7.1915, Charlottenburg
- Letter from: 17.7.1915, Dresden (Germany)
- Letter from: 21.7.1915, Charlottenburg
- Letter from: 22.7.1915, Charlottenburg
- Letter from: 27.7.1915, Charlottenburg
- Letter from: 4.8.1915, Charlottenburg
- Letter from: 7.7.1917, Ilipan
- Letter from: 12.7.1928, Charlottenburg
- Letter from: 0.1.1929, St. Moritz
- Letter from: 12.1.1929, Charlottenburg
- Letter from: 12.3.1932, Oslo
- Letter from: 7.12.1941, New York (N.Y.)
- Chicago
- Letter from: 2.6.1920, Charlottenburg
- Letter from: 5.6.1920, Gilgenburg (Prussia)
- Letter from: 16.10.1924, New York
- Letter from: 17.10.1924, New York (N.Y.)
- Letter from: 22.10.1924, Pittsburgh
- Letter from: 29.10.1924, Berlin (Germany)
- Letter from: 29.10.1924, Chicago
- Letter from: 29.10.1924, Chicago
- Letter from: 8.11.1924, Chicago
- Letter from: 12.11.1924, Berlin (Germany)
- Letter from: 13.11.1924, New York
- Letter from: 17.11.1924, New York
- Letter from: 19.3.1942, Michigan
- Letter from: 19.3.1942, New York (N.Y.)
- Letter from: 21.3.1942, Chicago
- Letter from: 23.3.1942, New York (N.Y.)
- Letter from: 12.4.1942, between Toledo and Chicago
- Letter from: 16.3.1944, Davenport
- Letter from: 20.3.1944, Detroit
- Letter from: 5.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 9.11.1945, San Francisco
- Letter from: 24.11.1945, San Francisco
- Letter from: 29.11.1945 + 14.12.1945, Croton-on-Hudson (N.Y.)
- Letter from: 30.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 2.12.1945, San Francisco
- Letter from: 4.12.1945, Croton-on-Hudson (N.Y.)
- Letter from: 9.12.1945, Saint Louis
- Letter from: 12.3.1946, Washington
- Letter from: 24.4.1947, Cleveland
- Letter from: 1.7.1947, Baltimore
- Letter from: 1.7.1947, Baltimore
- Letter from: 2.7.1947, Washington
- Letter from: 8.7.1947, Carmel (Calif.)
- Letter from: 3.11.1947, Baltimore
- Letter from: 9.11.1947, Washington
- Letter from: 16.1.1948, Cleveland
- Letter from: 14.11.1948, Washington
- Letter from: 1.3.1949, Grand Rapids
- Letter from: 18.6.1949, Auf dem Flug von San Francisco nach Chicago
- Letter from: 20.6.1949, New York
- Letter from: 22.6.1949, New York
- Letter from: 30.6.1949, Chicago
- Letter from: 27.1.1950, San Francisco (Calif.)
- Letter from: 27.1.1950, Grand Rapids
- Letter from: 31.1.1950, Unterwegs zwischen Cleveland und New York
- Letter from: 15.9.1950, Auf dem Flug von Saint Louis nach Chicago
- Letter from: 29.3.1951, Cleveland
- Letter from: 6.5.1951, Auf dem Flug von San Francisco nach New York
- Letter from: 10.7.1951, Cleveland
- Letter from: 14.9.1951, Cleveland
- Letter from: 31.5.1952, Auf dem Flug nach Hawaii
- Letter from: 22.6.1952, Hawaii
- Cleveland
- Letter from: 24.10.1924, Detroit
- Letter from: 31.10.1945, Croton-on-Hudson (N.Y.)
- Letter from: 9.11.1945, San Francisco
- Letter from: 16.11.1945, San Francisco
- Letter from: 18.11.1945, San Francisco
- Letter from: 19.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 24.11.1945, San Francisco
- Letter from: 27.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 29.11.1945 + 14.12.1945, Croton-on-Hudson (N.Y.)
- Letter from: 0.12.1945, Saint Louis
- Letter from: 30.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 9.12.1945, Saint Louis
- Letter from: 2.3.1946, Saint Louis
- Letter from: 4.3.1946, San Francisco (Calif.)
- Letter from: 6.3.1946, San Francisco (Calif.)
- Letter from: 8.3.1946, San Francisco (Calif.)
- Letter from: 9.3.1946, New York
- Letter from: 17.6.1946, San Francisco
- Letter from: 20.6.1946, San Francisco
- Letter from: 24.4.1947, Cleveland
- Letter from: 25.4.1947, Cleveland
- Letter from: 28.4.1947, New York
- Letter from: 30.4.1947, Washington
- Letter from: 2.7.1947, Washington
- Letter from: 8.7.1947, New York
- Letter from: 7.11.1947, Washington
- Letter from: 17.1.1948, Cleveland
- Letter from: 7.4.1948, San Francisco
- Letter from: 15.11.1948, Baltimore
- Letter from: o.D. [1949?], San Francisco (Calif.)
- Letter from: o.D. [1949?], San Francisco (Calif.)
- Letter from: 5.3.1949, Baltimore
- Letter from: 29.10.1949, Cleveland
- Letter from: 23.06.1950 , o.O. [San Francisco?]
- Letter from: 31.1.1950, Unterwegs zwischen Cleveland und New York
- Letter from: 11.6.1950, San Francisco (Calif.)
- Letter from: 16.6.1950, Cleveland
- Letter from: 16.6.1950, San Francisco (Calif.)
- Letter from: 17.6.1950, San Francisco (Calif.)
- Letter from: 17.8.1950, Betw. Grand Rapids & Cleveland
- Letter from: 19.8.1950, Cleveland
- Letter from: 20.8.1950, Baltimore
- Letter from: 21.8.1950, New York
- Letter from: 22.8.1950, New York
- Letter from: 22.10.1950, New York
- Letter from: 25.10.1950, Burlingame (Calif.)
- Letter from: 29.3.1951, Cleveland
- Letter from: 9.7.1951, San Francisco (Calif.)
- Letter from: 10.7.1951, Cleveland
- Letter from: 3.9.1952, New York
- Letter from: 5.9.1952, New York
- Letter from: 6.9.1952, San Francisco (Calif.)
- Letter from: 11.9.1952, San Francisco (Calif.)
- Letter from: 14.9.1952, Berkeley (Calif.)
- Letter from: 9.1.1953, San Francisco
- Letter from: 24.9.1955, Toronto
- Comologno
- Letter from: 1.9.1932, Comologno (Switzerland)
- Letter from: 6.9.1932, Berlin-Spandau
- Letter from: 11.9.1932, Vevey (Switzerland)
- Letter from: 28.9.1932, Milan (Italy)
- Letter from: 17.2.1933, Zurich (Switzerland)
- Letter from: 13.4.1933, Zurich (Switzerland)
- Letter from: 17.4.1933, Comologno (Switzerland)
- Letter from: 21.4.1933, Comologno (Switzerland)
- Letter from: 24.4.1933, Comologno (Switzerland)
- Letter from: 25.4.1933, Comologno (Switzerland)
- Letter from: 28.4.1933, Comologno (Switzerland)
- Letter from: 29.4.1933, Amsterdam
- Letter from: 1.5.1933, Comologno (Switzerland)
- Letter from: 1.5.1933, Comologno (Switzerland)
- Letter from: 17.1.1936, Zurich (Switzerland)
- Croton-on-Hudson
- Letter from: 27.4.1942, Croton-on-Hudson (N.Y.)
- Letter from: 5.9.1942, Stockbridge (Mass.)
- Letter from: 8.9.1942, New York
- Letter from: 6.3.1944, New York (N.Y.)
- Letter from: 13.10.1945, Highgate, London
- Letter from: 14.10.1945, Croton-on-Hudson (N.Y.)
- Letter from: 17.10.1945, Croton-on-Hudson (N.Y.)
- Letter from: 18.10.1945, Croton-on-Hudson (N.Y.)
- Letter from: 18.10.1945, Croton-on-Hudson (N.Y.)
- Letter from: 26.10.1945, Croton-on-Hudson (N.Y.)
- Letter from: 31.10.1945, Croton-on-Hudson (N.Y.)
- Letter from: 5.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 7.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 8.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 10.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 13.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 15.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 16.11.1945, San Francisco
- Letter from: 19.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 27.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 29.11.1945 + 14.12.1945, Croton-on-Hudson (N.Y.)
- Letter from: 30.11.1945, Croton-on-Hudson (N.Y.)
- Letter from: 4.12.1945, Croton-on-Hudson (N.Y.)
- Letter from: 23.6.1946, San Francisco
- Letter from: 17.6.1950, New York
- Letter from: 6.5.1951, Auf dem Flug von San Francisco nach New York
- Letter from: 8.5.1951, New York
- Letter from: 15.7.1951, Grand Rapids
- Letter from: 14.9.1952, Berkeley (Calif.)
- Letter from: 17.12.1952, New York (N.Y.)
- Letter from: 22.12.1952, New York (N.Y.)
- Letter from: 25.12.1952, San Francisco
- Letter from: 28.12.1952, New York (N.Y.)
- Letter from: 5.1.1953, New York (N.Y.)
- Letter from: 7.1.1953, San Francisco
- Letter from: 16.7.1953, o.O. [San Francisco]
- Croton-on-Hudson <Finney Farm>
- Letter from: 23.4.1942, San Francisco
- Letter from: 14.3.1944, Saint Louis
- Letter from: 16.3.1944, Davenport
- Letter from: 20.3.1944, Detroit
- Letter from: 7.1.1945, Chattanooga
- Letter from: 8.1.1945, Florence
- Letter from: 11.1.1945, Atlanta
- Letter from: 13.6.1945, Houston
- Letter from: 13.6.1945, Houston
- Letter from: 16.6.1945, Saint Louis
- Letter from: 14.10.1945, Washington
- Letter from: 21.10.1945, Saint Louis
- Letter from: 23.10.1945, Denver
- Letter from: 24.10.1945, Salt Lake City
- Letter from: 25.10.1945, Lake Tahoe
- Letter from: 27.10.1945, San Francisco
- Letter from: 28.10.1945, San Francisco
- Letter from: 1.11.1945, San Francisco
- Letter from: 5.11.1945, San Francisco
- Letter from: 6.11.1945, San Francisco
- Letter from: 7.11.1945, San Francisco
- Letter from: 9.11.1945, San Francisco
- Letter from: 11.11.1945, San Francisco
- Letter from: 16.11.1945, San Francisco
- Letter from: 18.11.1945, San Francisco
- Letter from: 21.11.1945, San Francisco
- Letter from: 24.11.1945, San Francisco
- Letter from: 2.12.1945, San Francisco
- Letter from: 9.12.1945, Saint Louis
- Letter from: 28.4.1947, New York