Keywords: Chapman, William H. (inventor)
Item 12538
Chapman electric neutralizing machine, Portland Company, ca. 1904
Contributed by: Maine Historical Society Date: circa 1904 Location: Portland Media: Ink on paper
Item 12544
W.H.C. Automatic Voltage Regulators, Portland Company, ca. 1904
Contributed by: Maine Historical Society Date: circa 1904 Location: Portland Media: Ink on paper, Photographic print
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John Martin: Expert Observer - Part 7, pages 114-134
"… Women drinking John thomas Thomas McAloon Nellie Chapman Cornelius Driscoll Cornelius Sullivan Bill Stevens Polka dancers John Martin dancing feats…"
