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Philadelphia Real Estate and Builder's Guide - Public Domain
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Harold Marcuse - Public Domain
Lightfoot, Claude M., 1910-1991
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Mercer, Charles Fenton, 1778-1858
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Alessandrini, Gerard
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Cronquist, Arthur
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La Vallière, Françoise-Louise de La Baume Le Blanc, duchesse de, 1644-1710
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Huet, Pierre-Daniel, 1630-1721
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Cornell Alumni Association - Public Domain
Schmidt, Nathaniel, 1862-1939
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Hudnall, James D.
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Cramer, J.A. (John Anthony), 1793-1848
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Mapes, Carl E. (Carl Edgar), 1874-1939
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Barr, Amelia E., 1831-1919
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Kilpinen, Yrjö
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Lemoyne, Jean- Louis, 1665-1755
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unknown - CC0 1.0
Matačić, Lovro von
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Léopold-Émile Reutlinger - Public Domain
Robinne, Gabrielle 1886-1980
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Thompson, Fred, 1942 August 19-
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Menten, Pieter Nicolaas, 1899-1987
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Fisher, Walter L. (Walter Lowrie), 1862-1935
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Grützmacher, Friedrich, 1832-1903
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De Luca, Giovanni Battista, 1614-1683
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Michael Stewart for the w:National Endowment for the Arts - Public Domain
Kunzel, Erich
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Gardner, James Carson, 1933-
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Purdy studios - Public Domain
Briggs, Le Baron Russell, 1855-1934
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Jan Vilímek - Public Domain
Tichatschek, Josef, 1807-1886
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Cousins, Ralph Wynne, 1915-
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Díaz Mirón, Salvador, 1853-1928
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Kemener, Yann-Fañch
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Crick, Odile, 1920-2007
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Wheeler, Shannon
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Philadelphia Real Estate and Builder's Guide - Public Domain
Nichols, Minerva Parker, -1949