William Smith House, also known as Brooks, is a historic home located at Wrightstown, Bucks County, Pennsylvania. The original section was built in 1686, and was a two-story, walnut log cabin. A fieldstone addition was built in 1690. The log section was subsequently covered in clapboard. Sympathetic modern additions were built in 1965 and 1968. It is the oldest structure in Wrightstown and one of the oldest in the nation.It was added to the National Register of Historic Places in 1974.