Items

• [E1421GR1], Letter from Edward M McIlvain, Lehigh Coke Co to Thomas Alva Edison, December 29th, 1914
  1914-12-29
• [E1421GR4], Letter from Lehigh Coke Co, Edward M McIlvain to Thomas Alva Edison, January 12th, 1915
  1915-01-12