Walker's Mill and Walker's Bank

Walker's Mill and Walker's Bank, also known as Simsville, Siddall's Mill, and "Big White Mill", is a historic spinning cotton mill and worker's dwelling block located near Wilmington, New Castle County, Delaware. Walker's Mill was built between 1813 and 1815, and is a 2 1/2-story, "T"-shaped, stone building. It measures approximately 100 feet by 225 feet and features a tower topped by a cupola. Walker's Bank is a two- to three-story rectangular stone building built in 1813 and consisting of four worker's homes. It measures 44 feet by 75 feet and each long side features a porch divided among the four units.

It was added to the National Register of Historic Places in 1972.