1891
Joseph Leidy, American paleontologist and author (born 1823)
Joseph Leidy, American paleontologist and author (born 1823)
Joseph Leidy, American paleontologist and author (born 1823)
American anatomist and paleontologist (1823-1891)
Joseph Leidy, American paleontologist and author (born 1823)
Joseph Leidy, American paleontologist and author (born 1823)
Joseph Leidy, American paleontologist and academic (died 1891)
Joseph Leidy, American paleontologist and academic (died 1891)