Alain LeRoy Locke
1935 · Fair
€20
W. E. B. Du Bois
1935 · Very good
€30
Margaret Trowell
1925 · Very good
€30
Martin Robison Delany
1865 · Good
€40
Booker T. Washington, Charles Waddell Chesnutt
1924 · Good
€50
Hartmann, Sadakichi
1929 · Good
€20
Verney Lovett Cameron, Daniel Oliver
1912 · Good
€25
Edward Austin Johnson
1894 · Good
€50
Ida B. Wells-Barnett, I. Garland Penn
1914 · Fair
€35
Hubert Howe Bancroft
1905 · Good
€25
J. H. van der Voort
1934 · Good · NL
€30
Carter Godwin Woodson
1934 · Very good
€40
Lewis Henry Morgan
1887 · Fair
€30
Booker T. Washington, Joe Henry Mitchell
1910 · Good
€35
John Gregory Bourke
1907 · Fair
€15
Serpa Pinto, Alfred Elwes
1927 · Good
€25
Wissler, Clark
1934 · Very good
€25
Koritha Mitchell, Frances Ellen Watkins Harper
1918 · Good
€20
Horace Kephart
1932 · Very good
€25
Zitkála-Šá, Desmond gahan
1935 · Good
€30
Charles Colcock Jones
1892 · Very good
€50
Marcellus Emants
1900 · Very good · NL
€25
Marcellus Emants
1904 · Good · NL
€20
J. Beijer
1864 · Good · NL
€40
Alfred Russel Wallace
1864 · Fair
€35
Emanuel Hannak
1911 · Very good · NL
€25
Theophilus Hahn
1929 · Good
€25
Ambrose Bierce
1913 · Fair
€45
Daniel Garrison Brinton
1914 · Fair
€35
Nederlandse Mycologische Vereniging
1918 · Fair · NL
€15
Thomas Wentworth Higginson
1897 · Fair
€40
Annie Salomons
1923 · Very good · NL
€25
Klikspaan
1935 · Fair · NL
€35
James Weldon Johnson
1904 · Good
€30
Nicolass Muller
1915 · Fine · NL
€35
J. P. Kleiweg de Zwaan
1911 · Fair · NL
€30
Richard Irving Dodge
1902 · Good
€25
George Scott Robertson, Arthur David McCormick
1900 · Very good
€30
Jeremiah Curtin
1907 · Good
€35
Library of Congress. Classification Division.
1906 · Good
€20
W. E. B. Du Bois
1935 · Good
€50
Annie Salomons
1935 · Good · NL
€20
Claude Phillips
1935 · Good
€30
Hélène Swarth
1921 · Good · NL
€30
Frans Verschoren
1913 · Good · NL
€20
J. van Lennep
1918 · Good · NL
€35
Arthur van Schendel
1935 · Good · NL
€45
John Ruskin
1907 · Good
€25
George Alexander Wilken
1914 · Very good · NL
€40
George Ade
1917 · Good
€45
Howard Weeden, Joel Chandler Harris
1899 · Fair
€25
Lewis Mumford
1935 · Very good
€25
Arthur, comte de Gobineau
1911 · Fair
€30
American Ornithologists' Union.
1901 · Good
€25
Charles Waddell Chesnutt
1926 · Fair
€15
Marcellus Emants
1889 · Fair · NL
€40
Raphael
1935 · Very good
€30
Annie Fields
1917 · Fair
€20
Ernest Thompson Seton
1905 · Good
€35
Victor Ernest Shelford
1935 · Fair
€20