Items

• [D8204ZCF], Letter from George Frederick Barker to Thomas Alva Edison, May 30th, 1882
  1882-05-30
• [LB006594], Letter from Thomas Alva Edison to Henry Augustus Rowland, November 24th, 1880
  1880-11-24
• [SC11105A], Interview, Thomas Alva Edison, September 20th, 1911
  1911-09-20
• [SC11146A], Interview, Thomas Alva Edison, December 6th, 1911
  1911-12-06
• [X0980H] Reminiscence, William Joseph Hammer, Undated
• [X098B001], Letter from William Joseph Hammer to Thomas Alva Edison, November 10th, 1903
  1903-11-10
• [X098B003], Letter from William Joseph Hammer to Thomas Alva Edison, November 20th, 1903
  1903-11-20