S. D. Warren Paper Mill

The S.D. Warren Paper Mill is a paper mill on the Presumpscot River in Westbrook, Maine. It is now owned by SAPPI Limited, a South African paper concern. It is one of Westbrook's major employers. The mill complex and former worker and management housing associated with the mill's operation in the 19th century were listed on the National Register of Historic Places in 1974 as the Cumberland Mills Historic District.
The Warren paper mill is a large sprawling industrial complex spanning the Presumpscot River just north of Cumberland Street in central eastern Westbrook. A paper mill was established on this site in the 1730s, when it was a rural and fairly unpopulated area. In 1854, that small paper mill, in the soon-to-be established town of Westbrook, was purchased for $28,000 by Samuel Dennis Warren, known as S.D. Warren. The mill was named Grant, Warren and Company. In that year, the mill was only running two paper machines and had a production output of about 3,000 pounds of paper per day. Nine years later in 1863, an additional machine was added to the mill, and the production increased to 11,000 pounds per day.

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