Keywords: Samuel Pierpont Langley.jpg Samuel Pierpont Langley pioneer aviator and 3rd Secretary of the Smithsonian Institute This picture is undated but from the Smithsonian so it was probably taken during his tenure there 1887-1906 It is in the public domain as produced by the United States Government and also because published before 1923 http //siarchives si edu/history/secretaries html Low resolution in context PD-USGov page is/was here All following user names refer to en wikipedia 15 10 16 December 2005 Daderot 550×720 69 307 bytes Samuel Pierpont Langley pioneer aviator and 3rd Secretary of the Smithsonian Institute This picture is undated but from the Smithsonian so it was probably taken during his tenure there 1887-1906 It is in the public domain as produced by the United S Samuel Pierpont Langley |