07/24/1929 Humberstone, J A to Meadowcroft, William Henry
(Ogden Ore Separating Plant; Edisonia Co [supplied or conjectured]; Ford, Henry; Edison, Thomas Alva) Reminiscences (after 1886); Ore milling (non-iron ore)
[X001C7]  Henry Ford Museum and Greenfield Village Research Center, Dearborn, Mich.: Edison Papers and Related Items -- Series I: Manuscripts -- Thomas A. Edison-Henry Ford Office Correspondence (1929)
[X001C7CQ; TAEM 0:0]
Courtesy of the Henry Ford Museum and Greenfield Village Research Center.