Image from Wikimedia Commons
Georges Biard - CC BY-SA 3.0
unknown - Public Domain
Photographer unidentified. - Public Domain
Raymond/author -
Liu Wenjin - Public Domain
MichaelSorenson - CC BY-SA 4.0
Public Domain
Rob Bogaerts / Anefo -
Department of Housing and Urban Development - Public Domain
Toglenn - CC BY-SA 3.0
Louis Sands after Nathaniel Smybert - Public Domain
Sumori - CC BY-SA 3.0
Mathew Brady - Public Domain
Image from Wikimedia Commons
Georges Biard - CC BY-SA 3.0
Brosnan, Pierce
Image from Wikimedia Commons
Davies, Thomas, 1713-1785
Image from Wikimedia Commons
unknown - Public Domain
Tilton, James, 1745-1822
Image from Wikimedia Commons
Quidor, John, 1801-1881
Image from Wikimedia Commons
Photographer unidentified. - Public Domain
Buck, Peter Henry, 1877?-1951
Image from Wikimedia Commons
Magloire, Paul Eugène 1907-2001
Image from Wikimedia Commons
Dean, Pamela, 1953-
Image from Wikimedia Commons
Waldo, Dwight B. (Dwight Bryant), 1864-1939
Image from Wikimedia Commons
Raymond/author -
Lindenberg, Udo
Image from Wikimedia Commons
Liu Wenjin - Public Domain
Chao, Buwei Yang, 1889-1981
Image from Wikimedia Commons
unknown - Public Domain
Sulivan, Bartholomew James, 1810-1890
Image from Wikimedia Commons
Winckelmann, Johann Joachim, 1717-1768
Image from Wikimedia Commons
Mathew, Arnold Harris, 1852-1919
Image from Wikimedia Commons
Montmorency, Mathieu de 1767-1826
Image from Wikimedia Commons
Eickemeyer, Rudolf, 1862-1932
Image from Wikimedia Commons
MichaelSorenson - CC BY-SA 4.0
Reed, James Sewall, 1832-1864
Image from Wikimedia Commons
Tennant, May
Image from Wikimedia Commons
Georg, Grand Duke of Mecklenburg-Strelitz, 1779-1860
Image from Wikimedia Commons
Bliss, Philip, 1787-1857
Image from Wikimedia Commons
Dean, James, 1931-1955
Image from Wikimedia Commons
unknown - Public Domain
Grew, Henry, 1781-1862
Image from Wikimedia Commons
unknown - Public Domain
Barth, Heinrich, 1821-1865
Image from Wikimedia Commons
Public Domain
Wedge, John Helder, 1793-1872
Image from Wikimedia Commons
Rob Bogaerts / Anefo -
Murphy, Mark, 1932-
Image from Wikimedia Commons
Department of Housing and Urban Development - Public Domain
Weaver, Robert C. (Robert Clifton), 1907-1997
Image from Wikimedia Commons
Toglenn - CC BY-SA 3.0
Landau, Martin, 1928-
Image from Wikimedia Commons
unknown - Public Domain
Quiñones, Francisco Mariano, 1830-1908
Image from Wikimedia Commons
Louis Sands after Nathaniel Smybert - Public Domain
Harrison, Peter, 1716-1775
Image from Wikimedia Commons
Sumori - CC BY-SA 3.0
Clark, W.C., 1939-
Image from Wikimedia Commons
Mathew Brady - Public Domain
Conkling, Frederick A. (Frederick Augustus), 1816-1891