PROVIDENCE — A Providence man described by authorities as a member of the Hanover Boyz street gang has been sentenced to 51 months in federal prison for being a felon in possession of a firearm.The Cranston police arrested Anthony Washburn, 33, in July 2018 during a traffic stop, when officers seized from his vehicle a firearm and a stamp collection that had been reported stolen from a Cranston home, according to a news release from U.S.