Fichier:Samuel-Pierpont-Langley.jpgSamuel P. Langley assumed leadership of the Smithsonian Institution in the 1890s, but continued his experiments with aerodynamics. Langley Air Force Base
Fichier:Samuel Pierpont Langley.jpgDescriptionSamuel Pierpont Langley.jpg Samuel Pierpont Langley, pioneer aviator and 3rd Secretary of the Smithsonian Institute. taken during his tenure