Image from Wikimedia Commons
Erling Mandelmann - CC BY-SA 3.0
unknown - Public Domain
United States Senate Historical Office - Public Domain
Not listed - Public Domain
Tessa Posthuma de Boer - Public Domain
unknown -
Public Domain
Inconnu vers 1840 - Public Domain
US gov - Public Domain
Gage Skidmore - CC BY-SA 3.0
Original uploader was AxelHH -
U.S. Government Printing Office. - Public Domain
Sharlot Hall Museum - Public Domain
Lev Ivanov / Лев Иванов -
unidentified photographer, published in Musica (1912) - Public Domain
American Press Association, New York - Public Domain
Konrad Jacobs - CC BY-SA 2.0
Image from Wikimedia Commons
Hofmann, Leopold, 1738-1793
Image from Wikimedia Commons
Erling Mandelmann - CC BY-SA 3.0
Tobey, Mark
Image from Wikimedia Commons
unknown - Public Domain
Lydenberg, Harry Miller, 1874-1960
Image from Wikimedia Commons
Gordon, Laura de Force, 1838-1907
Image from Wikimedia Commons
United States Senate Historical Office - Public Domain
McRoberts, Samuel, 1799-1843
Image from Wikimedia Commons
Newman, Edward, 1801-1876
Image from Wikimedia Commons
Not listed - Public Domain
Richardson, James D. (James Daniel), 1843-1914
Image from Wikimedia Commons
Tessa Posthuma de Boer - Public Domain
Jansen, Rudolf, 1940-
Image from Wikimedia Commons
unknown -
Fuller, Florence Ada, 1867-1946
Image from Wikimedia Commons
Public Domain
Deutsch, Peter R., 1957-
Image from Wikimedia Commons
Inconnu vers 1840 - Public Domain
Fossa, François de, 1775-1849
Image from Wikimedia Commons
Philpot, Glyn, 1884-1937
Image from Wikimedia Commons
US gov - Public Domain
Anderson, Robert B. (Robert Bernerd), 1910-1989
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Carrier, Jean-Baptiste, 1756-1794
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Mayo, Nathan, 1876-1960
Image from Wikimedia Commons
Moloney, Parker
Image from Wikimedia Commons
Brennand, Francisco, 1927-
Image from Wikimedia Commons
Gage Skidmore - CC BY-SA 3.0
Flanagan, Tommy, 1965-
Image from Wikimedia Commons
unknown - Public Domain
Schlosser, Friedrich Christoph, 1776-1861
Image from Wikimedia Commons
Mayr, Ernst, 1904-2005
Image from Wikimedia Commons
Original uploader was AxelHH -
Henry, John, 1943-
Image from Wikimedia Commons
U.S. Government Printing Office. - Public Domain
Smith, Lawrence Henry, 1892-1958
Image from Wikimedia Commons
Sharlot Hall Museum - Public Domain
Hall, Sharlot Mabridth, 1870-1943
Image from Wikimedia Commons
Lev Ivanov / Лев Иванов -
Gromyko, Anatoliĭ Andreevich
Image from Wikimedia Commons
unidentified photographer, published in Musica (1912) - Public Domain
Tournier, Marcel, 1879-1951
Image from Wikimedia Commons
Bacchelli, Riccardo, 1891-1985
Image from Wikimedia Commons
Anthony B.
Image from Wikimedia Commons
American Press Association, New York - Public Domain
Taylor, Edward T. (Edward Thomas), 1858-1941
Image from Wikimedia Commons
Lowery, Robert, 1916-1971
Image from Wikimedia Commons
Konrad Jacobs - CC BY-SA 2.0
Mahler, Kurt.