(Tiverton, RI) -- A new stone marker has been unveiled at an historic American Revolutionary War fort in Rhode Island. The Newport Daily News reports the marker for Fort Barton was uncovered on Sunday close to the fort's entrance in Tiverton. The site was named for William Barton, who captured British General Richard Prescott during a midnight raid in Portsmouth in 1777. It served as a launching position for American forces during the Battle of Rhode Island the following year.