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Photo not credited in any obvious way - Public Domain
unknown - Public Domain
United States Office of Humanities - Public Domain
William Rankine - Public Domain
S. Hurok-Hurok Attractions-concert promoter - Public Domain
original author and copyright not listed, digitized by Google Books (https://books.google.com/books?id=9ltNAAAAYAAJ&pg=PA470&dq=polo+%22j.m.+waterbury%22&hl=en&ei=h3GRTLs5gvjwBtPb6NsG&sa=X&oi=book_result&ct=result&resnum=2&ved=0CC4Q6AEwATge#v=onepage&q=polo%20%22j.m.%20waterbury%22&f=false) - Public Domain
Paul Cézanne - Public Domain
Not credited (used in autobiography) - Public Domain
Garnet Terry - Public Domain
Tom Marcello - CC BY-SA 2.0
ICTY staff (ICTY photographer) -
(...) Punt / Anefo -
Image from Wikimedia Commons
Photo not credited in any obvious way - Public Domain
Haller, Granville O. (Granville Owen), 1820-1897
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Phelan, James D. (James Duval), 1861-1930
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unknown - Public Domain
Abraham, William, 1842-1922
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Lane, James Henry, 1814-1866
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United States Office of Humanities - Public Domain
Leach, James, 1942-
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Morier, Robert, Sir, 1826-1893
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William Rankine - Public Domain
Rankine, William John Macquorn, 1820-1872
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S. Hurok-Hurok Attractions-concert promoter - Public Domain
Thebom, Blanche
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Waldrop, Keith
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Gutiérrez, Pedro Elías 1870-1954
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unknown - Public Domain
Cowper, Spencer, 1713-1774
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Schultz, James Willard, 1859-1947
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unknown - Public Domain
Howard, Brian, 1905-1958
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original author and copyright not listed, digitized by Google Books (https://books.google.com/books?id=9ltNAAAAYAAJ&pg=PA470&dq=polo+%22j.m.+waterbury%22&hl=en&ei=h3GRTLs5gvjwBtPb6NsG&sa=X&oi=book_result&ct=result&resnum=2&ved=0CC4Q6AEwATge#v=onepage&q=polo%20%22j.m.%20waterbury%22&f=false) - Public Domain
Berry, Martha, 1866-1942
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Emmett, L. (Lafayette), 1822-1906
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Paul Cézanne - Public Domain
Gasquet, Joachim, 1873-1921
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Not credited (used in autobiography) - Public Domain
Massey, John E. (John Edward), 1819-1901
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Derby, Thomas Stanley, Earl of, approximately 1433-1504
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Aman, Alfred. C.
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Magnani, Anna, 1908-1973
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Garnet Terry - Public Domain
Johnson, Richard, 1755-1827
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Tom Marcello - CC BY-SA 2.0
Redd, Vi
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Mackintosh, A. L. A. (Aeneas Lionel Acton), 1879-1916
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Speke, John Hanning, 1827-1864
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ICTY staff (ICTY photographer) -
Meron, Theodor, 1930-....
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unknown - Public Domain
Cahours, Auguste-André-Thomas (1813-1891) .
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Lega, Michele, 1860-1935
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(...) Punt / Anefo -
Weisz, Frans, 1938-
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Williams, S. T. (Samuel Tankersley), 1897-1984
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unknown - Public Domain
Bois, Jules, 1871-1943