1919 [Supplied year] Meadowcroft, William Henry -- Lists and Inventories
(Edison, Thomas Alva) World War I; Research and development; Military
[X128C00]  Charles Hummel Collection, Wayne, N.J.: Edison Wartime Research Reports -- Experiment Lists and Memoirs
[X128C00B; TAEM 0:0]
Courtesy of Charles Hummel.