Samuel Pierpont Langley and Charles M. Manly
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Keywords: ., administration, aeronautics, aerospace, astronomy, aviation, bygone, center, charles, charlesmanley, charlesmmanley, historic, history, langley, langleyresearchcenter, manley, nasa, national, nationalaeronauticsandspaceadministration, pierpoint, research, samuel, samuellangley, samuelpierpointlangley, samuelplangley, space