Items

• [D9631ADD], Letter from William Ridgely Orndorff, Cornell University to Thomas Alva Edison, May 13th, 1896
  1896-05-13
• [E1518JCA], Letter from William Ridgely Orndorff to Thomas Alva Edison, October 20th, 1915
  1915-10-20
• [E1518KBW], Letter from William Ridgely Orndorff to Thomas Alva Edison, November 20th, 1915
  1915-11-20
• [E1616HAS], Letter from William Ridgely Orndorff to Thomas Alva Edison, August 4th, 1916
  1916-08-04
• [E1717AR], Letter from William Ridgely Orndorff to Thomas Alva Edison, February 10th, 1917
  1917-02-10