▁In ▁his ▁later ▁years ▁B anc ro ft ▁lived ▁in ▁Washington , ▁DC , ▁summer ing ▁at ▁Rose ▁Cl iff , ▁New port , ▁Rh ode ▁Island , ▁the ▁site ▁where ▁Rose cl iff ▁was ▁later ▁built . ▁ ▁His ▁last ▁official ▁achiev ements ▁are ▁considered ▁the ▁greatest . ▁In ▁the ▁San ▁Juan ▁arbitr ation ▁he ▁displayed ▁great ▁vers at ility ▁and ▁skill ▁and ▁won ▁the ▁case , ▁which ▁was ▁decided ▁by ▁a ▁commission ▁appointed ▁by ▁the ▁German ▁Emperor . ▁He ▁died ▁in ▁ 1 8 9 1 , ▁being ▁the ▁last ▁surv iving ▁member ▁of ▁the ▁Pol k ▁cabinet . ▁ ▁Works ▁ ▁Major ▁works ▁ ▁B anc ro ft , ▁George . ▁History ▁of ▁the ▁United ▁States ▁of ▁America , ▁from ▁the ▁Disc overy ▁of ▁the ▁American ▁Cont inent . ▁( B oston : ▁Little , ▁Brown , ▁and ▁company , ▁numerous ▁ed itions ▁in ▁ 8 ▁or ▁ 1 0 ▁volumes ▁ 1 8 5 4 – 1 8 7 8 ). ▁▁ ▁B anc ro ft , ▁George ; ▁D yer , ▁Oliver , ▁ 1 8 2 4 – 1 9 0 7 . ▁( 1 8 9 1 ) ▁History ▁of ▁the ▁Battle ▁of ▁Lake ▁Er ie , ▁and ▁Mis cell aneous ▁Pap ers ▁( New ▁York : ▁R . ▁Bon ner ' s ▁sons ) ▁ 2 9 2 ▁pp . ▁( American ▁Library ▁Association ) ▁online ▁edition ▁ ▁B anc ro ft , ▁George . ▁Martin ▁Van ▁Bur en ▁to ▁the ▁End ▁of ▁His ▁Public