Items

• [D8020ZJZ], Letter from William Marshall Ladd to Thomas Alva Edison, December 20th, 1880
  1880-12-20
• [SM001060f], Clipping, William Marshall Ladd, September 5th, 1878
  1878-09-05
• [SM026011a], Clipping, Telegraphic Journal, William Marshall Ladd, October 1st, 1880
  1880-10-01