Items

• [MF20AD], Letter from William Henry Meadowcroft to Thomas Alva Edison, October 3rd, 1917
  1917-10-03
• [MF20AD1], Letter from Thomas Alva Edison to William Henry Meadowcroft, September 1917
  1917-09-00
• [MF22BS], Letter from William Henry Meadowcroft to William H Knierim, December 20th, 1917
  1917-12-20
• [MF28AF], Technical Note, Thomas Alva Edison, 1917
  1917-00-00
• [NP106046], Diary, Thomas Alva Edison, November 15th, 1916
  1916-11-15