| ||Portland Company boiler shop employees, August 30, 1887|
Maine Historical Society, Still Image
Portland Company, Portland, Maine boiler shop employees, August 30, 1887. "The boiler shop employees were vital for the production of the 630 steam locomotive[s] and hundreds of marine and industrial boilers built by the Portland Company during the 19th century."- Fletcher, David H. 'The Portland Company 1846-1982. Charleston, S.C. : Arcadia Pub., 2002. 21.
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Portland Company (Portland, Me.) -- Employees -- Photographs
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