Author
Albertype Co
31
Audubon, John James, 1785-1851
4
John James Audubon Center at Mill Grove
3
Wilson, Alexander, 1766-1813
3
Baird, Spencer Fullerton, 1823-1887
2
Barnes, Laura T.
2
Barton, Benjamin Smith, 1766-1815
2
Camburn, Carol A.
2
Carey, Henry Charles 1793-1879
2
Cosentino, Andrew J.
2
Denker, Ellen
2
Graham, Daniel A.
2
Graham, Daniel A., 1948-
2
Grundtvig, Frederik Lange, 1854-1903
2
Harpel, Luther G.
2
Kholodnyĭ, Petro, 1902-1990
2
Krider, John
2
Leland, Charles Godfrey, 1824-1903
2
Moras, Ferdinand
2
New Jersey Audubon Society
2
New Jersey. Board of Fish and Game Commissioners
2
Pennsylvania Game Commission
2
Peterson, Roger Tory, 1908-1996
2
Sibley, David, 1961-
2
Siryĭ, I︠U︡r. 1880-1953
2
Stone, Witmer, 1866-1939
2
Valley Forge Audubon Society
2
Warren, Benjamin Harry, 1858-1926
2
A.K. Newman & Co
1
Academy of Natural Sciences of Drexel University
1
Allen, Elsa Guerdrum
1
Arnold, Lee, 1959-
1
Atkinson, Wilmer, 1840-1920
1
Audubon, Maria R. 1843-1925
1
Bailey, Florence Merriam, b. 1863
1
Bailey, Vernon, 1864-1942
1
Baily, William L.
1
Barone, Robin,
1
Bell, John Graham
1
Benson, Maxine
1
Bird, Isabella L. 1831-1904
1
Bird, Mary Mayer, 1809-1868
1
Bishop, Richard E. 1887-1975
1
Bonaparte, Charles Lucian, 1803-1857
1
Borneman, Henry Stauffer, 1870-1955
1
Brauning, Daniel W.
1
Bronson, William White, 1816-1900
1
Bucks County Historical Society
1
Canada. National Parks Branch
1
Cape May Bird Observatory
1
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