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The Hewitt House gives historical and visual evidence of Philadelphia's influence in the Pocahontas coalfield. Built of bluestone and covered with an expansive roof of variegated green tile, the one-and-one-half-story house is low and sprawling, with gables and dormer windows composing the upper fenestration. Informally formal, it appears as a transplant from Chestnut Hill or the Main Line. The garage–servant's quarters on Rose Street (an alley between Main and South River streets), with its huge chimney for the heating plant, is an important part of the complex. The builder, widow of Bramwell's first mayor and one of its coal barons, was from Philadelphia, as were the architects.