Image from Wikimedia Commons
Public Domain
Richard Westall - Public Domain
Uwe Krebs -
unknown - CC BY-SA 4.0
Alissaarp - Public Domain
C.M. Stieglitz, World Telegram staff photographer - Public Domain
Joseph Keiley - Public Domain
unknown - Public Domain
Roerich Museum - Public Domain
Photograph by Christopher Peterson. christopherpeterson.com - CC BY-SA 3.0
Image from Wikimedia Commons
Public Domain
Campbell, Tunis G. (Tunis Gulic), 1812-1891
Image from Wikimedia Commons
Richard Westall - Public Domain
Daniell, William, 1769-1837
Image from Wikimedia Commons
Fairfax, Sally Cary, 1730-1811
Image from Wikimedia Commons
Beerbohm, Max, Sir, 1872-1956
Image from Wikimedia Commons
Uwe Krebs -
Fischer, Werner
Image from Wikimedia Commons
Norton, John Pitkin, 1822-1852
Image from Wikimedia Commons
unknown - CC BY-SA 4.0
Celliers, Jan François Elias, 1865-1940
Image from Wikimedia Commons
Alissaarp - Public Domain
Arp, Halton C.
Image from Wikimedia Commons
Schlegel, August Wilhelm von 1767-1845
Image from Wikimedia Commons
C.M. Stieglitz, World Telegram staff photographer - Public Domain
Moses, Robert, 1888-1981
Image from Wikimedia Commons
Boisduval, Jean Alphonse, 1801-1879
Image from Wikimedia Commons
Storrier, Tim, 1949-
Image from Wikimedia Commons
Blokhuis, Peter, 1947-
Image from Wikimedia Commons
Martin, Charles, 1866-1955
Image from Wikimedia Commons
Ames, Adrienne, 1907-1947
Image from Wikimedia Commons
Joseph Keiley - Public Domain
Keiley, Joseph T.
Image from Wikimedia Commons
Grøndahl, Launy, 1886-1960
Image from Wikimedia Commons
Stark, Jen 1983-
Image from Wikimedia Commons
unknown - Public Domain
Parkhurst, John Adelbert, 1861-1925
Image from Wikimedia Commons
Haskell, Edward F.
Image from Wikimedia Commons
unknown - Public Domain
Miller, Lilian
Image from Wikimedia Commons
Davis, Joseph Barnard, 1801-1881
Image from Wikimedia Commons
Hawkins, John J., 1855-1935
Image from Wikimedia Commons
unknown - Public Domain
Channing, Stockard
Image from Wikimedia Commons
unknown - Public Domain
De Beck, Billy, 1890-1942
Image from Wikimedia Commons
Garris, Mick
Image from Wikimedia Commons
De Kay, James E. (James Ellsworth), 1792-1851
Image from Wikimedia Commons
Roerich Museum - Public Domain
Koelz, Walter, 1895-1989
Image from Wikimedia Commons
Photograph by Christopher Peterson. christopherpeterson.com - CC BY-SA 3.0
Crewdson, Gregory, 1962-....
Image from Wikimedia Commons
Bonham-Carter, Helena 1966-....