Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Waddy House, also known as the Williamson farm or the Jarvis Ballard house, is a historic home located at Princess Anne, Somerset County, Maryland, United States. It is a one and one-half story, Georgian style mid-18th century brick house supported by a raised Flemish bond brick foundation. The four-room plan dwelling measures 32 feet across by 32 feet deep. The house is one of a small collection of early brick houses surviving in Somerset County.The Waddy House was listed on the National Register of Historic Places in 1988.