an Entity references as follows:
USS Roller (AMc-52) was an Accentor-class coastal minesweeper acquired by the U.S. Navy for the dangerous task of removing mines from minefields laid in the water to prevent ships from passing. Roller was laid down 27 December 1940 at the Snow Shipyards, Rockland, Maine; launched 14 May 1941; sponsored by Miss Linda Ann Dean; and placed in service 12 August 1941.