The first permanent white settlers west of the Alleghenies have traditionally been considered to have been two New Englanders: Jacob Marlin and Stephen Sewell, who arrived in the Greenbrier Valley in 1749. They built a cabin together at what would become Marlinton, but after disputing over religion, Sewell moved into a nearby hollowed-out sycamore tree. In 1751, surveyor John Lewis (father of Andrew Lewis) discovered the pair. Sewell eventually settled on the eastern side of Sewell Mountain, near present-day Rainelle. They may well have been the first to settle what was then called the "western waters" — i.e., in the regions where streams flowed westward to the Gulf of Mexico rather than eastward to the Atlantic.