Items

• [D7940ZBD], Letter from Joshua Franklin Bailey to Constant Rousseau, September 6th, 1879
  1879-09-06
• [D7940ZCX], Letter from Thomas Alva Edison to Constant Rousseau, November 18th, 1879
  1879-11-18
• [D8048ZHH], Letter from Oscar Othan Siegel, John Henry Harjes to Constant Rousseau, December 11th, 1880
  1880-12-11
• [D8048ZHL], Letter from Henry Harrisse to Constant Rousseau, December 1880
  1880-12-00