These documents, written in 1928 and 1929, concern Henry A. ("Alex") Campbell's work as a carpenter for Edison, primarily from 1878 until 1882. Correspondence between Campbell and the Ford office staff relates to the reconstruction of the Menlo Park buildings, particularly the machine shop, and refers to the contributions of Frank A. Wardlaw and Francis Jehl. There is also a 19-page essay on Edison's accomplishments, in which Campbell discusses his own role in erecting buildings and laying out the electric railroad and lamp posts at Menlo Park, his supervision of the construction of the Pearl Street central station in New York City, and the use of a mercury-based vacuum pump in electric lamp production. Among the early Edison associates mentioned in these documents are glassblower William Holzer and machinist Alexander Mungle, as well as William S. Andrews, Charles Batchelor, John Kruesi, and John F. Ott.
[X001J6A], Letter from Henry Alexander Campbell to Frank Campsall, August 15th, 1928 1928-08-15
[X001J6B], Letter from J A Humberstone to Henry Alexander Campbell, July 1st, 1929 1929-07-01
[X001J6C], Letter from Henry Alexander Campbell to Henry Ford, July 10th, 1929 1929-07-10
[X001J6D], Letter from Henry Alexander Campbell to Henry Ford, July 11th, 1929 1929-07-11
[X001J6E], Letter from Henry Alexander Campbell to Henry Ford, July 11th, 1929 1929-07-11
[X001J6F], Reminiscence, Henry Alexander Campbell, July 11th, 1929 1929-07-11