Sonestown is a former unincorporated village in what is now Davidson Township, Sullivan County, in the U.S. state of Pennsylvania. In 1843, George Sones built a sawmill and founded Sonestown, an unincorporated village within what is now Davidson Township in Sullivan County, Pennsylvania. This occurred before Sullivan County was formed fro…Sonestown is a former unincorporated village in what is now Davidson Township, Sullivan County, in the U.S. state of Pennsylvania. In 1843, George Sones built a sawmill and founded Sonestown, an unincorporated village within what is now Davidson Township in Sullivan County, Pennsylvania. This occurred before Sullivan County was formed from part of Lycoming County on March 14, 1847.