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This house is a fine example of the factory-produced wood architectural decoration popular in the late nineteenth century and manufactured in Pocomoke City’s steam-powered lumber, shingle, and planing mills. The jigsawn brackets and vergeboards and turned porch posts enliven a rather conservative center-hall I-house and give it a fashionable Italianate veneer. Physician Isaac Costen and his wife, Olivia Adams Costen, purchased the house shortly after its construction. Costen also served in the Maryland General Assembly starting in 1881 and as the first mayor of Pocomoke City in 1888. Local preservationists with the Spirit of Newtown Committee acquired the house when it was threatened with demolition in the 1970s and helped turn it into a city-owned house museum.