Seneca Williams Mill

Seneca Williams Mill
U.S. National Register of Historic Places
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Location	East of Maquoketa on Iowa Highway 64
Coordinates	42°03′55″N 90°38′25″W / 42.06528°N 90.64028°W / 42.06528; -90.64028Coordinates: 42°03′55″N 90°38′25″W / 42.06528°N 90.64028°W / 42.06528; -90.64028
Area	less than one acre
Built	1867
Built by	Joseph Willey
NRHP reference No.	76000774[1]
Added to NRHP	September 1, 1976

Seneca Williams Mill is a historic building located just outside of Maquoketa, Iowa, United States. Originally known as Oakland Mill, it was built by Joseph Willey in 1867.^[2][3] The 2½-story stone building has a partial basement and is capped with a gable roof. A water-powered turbine, still extant, supplied the power to operate the mill. The location of the mill race can still be seen on the east side of the property, and permanents of the damn remain in Prairie Creek.^[3] None of the mill workings remain on the inside. Willey sold the mill to Seneca Williams in 1867, and he operated in until 1904. The building was converted into a barn in 1920. The building was listed on the National Register of Historic Places in 1976.^[1] Wildlife artist Patrick J. Costello used the old mill as a residence and studio from 1979 to 2006. His daughter Tracy Costello Taylor has operated it since as a reception hall.

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