Thomas Alva Edison with his phonograph (2nd model), taken in Mathew Brady's Washington, D.C. studio (1878)
File Reference # 1003_826THA
Inventor and physicist Thomas Alva Edison looking at his light bulb invention, circa (1911)
File Reference # 1003_825THA
Thomas Alva Edison, three-quarter length portrait, seated, facing front, circa 1922
File Reference # 1003_439THA