Will R. Barnes (American, ?-1939)
Udo Keppler (American, 1872 – 1956)
Elizabeth A. Nedwill (American, 19th century)
Bernhard Gillam (American, 1856 – 1896)
Anonymous
Francois-Louis Schmied (French, 1873-1941)
Warwick Goble (English, 1862 – 1943)
Édouard Guichard (French, 1815-1889)
George Henry Mason (English, 1770-1851)
Anton Seder (Austrian, 1850-1916)
Letterio Calapai (American, 1902–1993)
Miep de Feijter (Dutch, 20th Century)
Ralph Barton (American, 1891–1931)
Will R. Barnes (American, ?-1939)
William Morris (English, 1834 – 1896)
Theodore Dreiser (American, 1871 – 1945)
Carl Becker (German, 19th Century)
Anonymous
Fedor Grigoryevich Solntsev (Russian, 1801 – 1892)
Charles Dana Gibson (American, 1867 - 1944)
Sergeĭ Mit͡skevich (Russian, 1869-1944)
Paul Wenzel (Publisher) (American, 19th Century)
Karl Wiener (Austrian, 1901-1949)