Items

• [E1834AD], Letter from William Henry Meadowcroft to Richard Cockburn Maclaurin, Massachusetts Institute of Technology, April 15th, 1918
  1918-04-15
• [E1914AN], Letter from Thomas Alva Edison to Massachusetts Institute of Technology, Richard Cockburn Maclaurin, July 16th, 1919
  1919-07-16
• [E1914AS], Letter from Thomas Alva Edison to Richard Cockburn Maclaurin, Massachusetts Institute of Technology, July 26th, 1919
  1919-07-26
• [E1914AY], Letter from William Henry Meadowcroft to Massachusetts Institute of Technology, Richard Cockburn Maclaurin, August 28th, 1919
  1919-08-28
• [LB114014], Letter from Thomas Alva Edison to Richard Cockburn Maclaurin, September 12th, 1916
  1916-09-12
• [MF13AC], Letter from William Henry Meadowcroft to Richard Cockburn Maclaurin, Massachusetts Institute of Technology, March 1st, 1917
  1917-03-01