Frank A. Palmer and Louise B. Crary are a historic dual shipwreck site in the Stellwagen Bank National Marine Sanctuary, off Gloucester, Massachusetts. Nathaniel T. Palmer and the New England Shipbuilding Company built Frank A. Palmer in 1897. Louise B. Crary was launched in 1900. Both were wooden-hulled coal-carrying schooners. At 274 feet (83.5 meters) in length, Frank A. Palmer may be the largest four-masted schooner ever built. Louise B. Crary was 267 feet (81.4 meters) long and had five masts.