 Around the time that this was happening, a settlement arose on the eastern side of the West Branch Susquehanna River (Nippenose Township), opposite Waynesburg.A rivalry developed between the two settlements, and those on the eastern shore began referring to the settlement on the western shore as the "Jersey Shore," because the Manning family had relocated from New Jersey.The nickname became so fixed that in 1826 the original name of Waynesburg was officially abandoned and changed to Jersey Shore.