"Naturalists." . . "Naturalists United States Biography." . . . . "1828." . . "United States" . . "United States." . "Ornothologists United States Biography." . . "Ornithologists United States Biography." . . "Ornothologists United States." . . "Alexander Wilson"@en . "Sketch of the life of Alexander Wilson author of the American ornithology"@en . "Life of Wilson"@en . "Records and correspondence"@en . . . . . . . . . . . "Sketch of the life of Alexander Wilson : author of the American ornathology" . . . . . "Sketch of the life of Alexander Wilson, author of the American ornithology"@en . . . . . . . . . "Electronic books"@en . . . "Biography"@en . "Biography" . . . . . . . "Early works"@en . . "Sketch of the life of Alexander Wilson : author of the American ornithology" . . . . . . . . . "Natural History Pennsylvania Collected Correspondence." . . "Birds Pennsylvania." . . "Natural History Pennsylvania Biography." . . "Philadelphia (Pa.)" . . "Ornithologists." . .