Archibald Rogers
1926 · Good
€25
Roy Chapman Andrews
1926 · Good
€25
Rowland Ward
1935 · Good
€25
Ernest Thompson Seton
1912 · Fair
€25
W. H. Hudson
1935 · Good
€30
Mabel Osgood Wright
1903 · Good
€40
Christiaan Lodewijk Houthuysen
1930 · Good · NL
€30
Martin Hiesemann
1924 · Good
€20
W. H. Hudson
1915 · Good
€50
Worthington Hooker
1906 · Very good
€30
Stone, Witmer
1905 · Fair
€20
W. H. Hudson
1901 · Good
€25
Leslie McFarlane
1935 · Very good
€40
Theodore Roosevelt
1932 · Very good
€50
Rudolf Těsnohlídek
1923 · Very good
€35
Theun de Vries
1935 · Good · NL
€20
T. E. Hulme
1935 · Very good
€25
W. H. Hudson
1905 · Good
€20
W. H. Hudson
1935 · Very good
€25
John Masefield
1935 · Very good
€35
M. Buys
1935 · Good · NL
€25
Frits Lugt
1920 · Fair · NL
€20
W. H. Hudson
1924 · Good
€40
L. Th Mayer
1910 · Good · NL
€25
Mary Roberts Rinehart
1924 · Very good
€25
Grace Gallatin Seton-Thompson, Gallatin Grace Seton-Thompson
1935 · Good
€35
Stijn Streuvels
1912 · Fair · NL
€15
Huntly Carter
1935 · Very good
€25
Robert Frost
1935 · Good
€25
Charles G. D. Roberts
1906 · Good
€30
Craandijk, J.
1902 · Fair · NL
€15
Junk, W., firm, publishers.
1935 · Very good · NL
€40
Denham Jordan
1908 · Fair
€50
William A. Dutt
1916 · Very good
€40
H. Koffyberg
1924 · Fair · NL
€20
Abraham Kuyper
1911 · Fine · NL
€30
Ernest Thompson Seton
1929 · Fine
€35
Pieter Joseph Cruse
1911 · Fine · NL
€30
W. Hamilton Gibson
1914 · Fair
€15
Klikspaan
1935 · Fair · NL
€35
Eskelhoff Carsjen Gravemeijer
1902 · Good · NL
€30
G. Hartwig
1900 · Good
€25
Hendrik Blink
1925 · Fair · NL
€20
G. A. Henty
1926 · Good
€20
E. V. Lucas
1932 · Good
€30
Nederlandse Mycologische Vereniging
1918 · Fair · NL
€15
Hamilton Wright Mabie
1901 · Fair
€35
John Masefield
1935 · Very good
€30
Luther E. Wyman
1927 · Fair
€40
F. Matthias Alexander
1935 · Fine
€35
Dirk Hudig
1908 · Very good · NL
€25
Henry David Thoreau
1935 · Good
€30
J. van Lennep
1902 · Good · NL
€30
L. A. Borradaile
1935 · Good
€20
British Ornithologists' Union
1907 · Fair
€45
Victor Ernest Shelford
1935 · Fair
€20
Heindel, Max, Max Heindel
1918 · Very good
€30
J. Arthur Thomson
1909 · Fine
€45
Zane Grey
1923 · Very good
€30
Edward Carpenter, Jeff Carreira
1911 · Fair
€40