12/21/1918 Meadowcroft, William Henry [supplied or conjectured] to Butler, John Jarvis
(Hanford, Charles Barnum; Edison, Thomas Alva) Newspapers, books, other publications; Metals and minerals
[E1857]  Edison General File Series -- 1918: (E-18-57) Mining -- Metals and Other Minerals
[E1857CH; TAEM 270:430]
Courtesy of Thomas Edison National Historical Park.
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