Person/Organization: Chapman, William H.
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
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 71371
152 Prospect Street, Portland, 1924
Owner in 1924: William H. Chapman Use: Dwelling - Single family
