Items

• [E1952AA], Letter from John A Hanley to Thomas Alva Edison, January 7th, 1919
  1919-01-07
• [E1952AF], Letter from John A Hanley to Thomas Alva Edison, March 15th, 1919
  1919-03-15
• [E1952AP], Letter from John A Hanley to Thomas Alva Edison, May 24th, 1919
  1919-05-24
• [E1952AV], Letter from John A Hanley to Thomas Alva Edison, August 8th, 1919
  1919-08-08
• [MF48AA], Letter from John A Hanley, Warren Stone Harris to Thomas Alva Edison, January 7th, 1919
  1919-01-07
• [MF48AJ], Letter from Yates Stirling, Jr. to Thomas Alva Edison, January 28th, 1919
  1919-01-28
• [MF48BR], Letter from Franklin Delano Roosevelt, U.S. Navy Dept to Thomas Alva Edison, April 24th, 1919
  1919-04-24
• [MF49AY], Letter from Thomas Alva Edison to U.S. Navy Dept, Franklin Delano Roosevelt, September 15th, 1919
  1919-09-15
• [NB230171B], Technical Note, John A Hanley, January 22nd, 1919
  1919-01-22
• [NB230179], Technical Note, John A Hanley, January 30th, 1919
  1919-01-30
• [NB230183B], Technical Note, John A Hanley, February 13th, 1919
  1919-02-13
• [NB231063B], Technical Note, John A Hanley, June 4th, 1919
  1919-06-04
• [NB231149B], Technical Note, John A Hanley, August 20th, 1919
  1919-08-20