life Irish American brothers from  the Irish neighborhood of South Boston: James "Whitey" Bulger, Jr.,  a gangster who has been on the F.B.I.s Most Wanted List for 10  years as a fugitive from justice, and Senator William Bulger (qv)  (known as "Billy"), a powerful state politician who was President of  the Massachusetts Senate and later president of the University of  Massachusetts higher educational system.