▁man ▁named ▁" John ▁Kennedy "). ▁ ▁Instead , ▁Kennedy ▁was ▁the ▁Maryland ▁chairman ▁of ▁the ▁Constitution al ▁Union ▁Party , ▁which ▁nominated ▁John ▁Bell ▁and ▁Edward ▁Ever ett ▁for ▁the ▁Pres iden cy . ▁ ▁Kennedy ▁played ▁an ▁instrument al ▁leadership ▁role ▁in ▁the ▁Union ▁Party ' s ▁successful ▁effort ▁to ▁end ▁sla very ▁in ▁Maryland ▁in ▁ 1 8 6 4 . ▁This ▁had ▁to ▁be ▁done ▁at ▁the ▁state ▁level ▁because ▁the ▁E man cip ation ▁Pro clam ation ▁did ▁not ▁apply ▁to ▁the ▁state . ▁ ▁At ▁the ▁end ▁of ▁the ▁American ▁Civil ▁War ▁– ▁during ▁which ▁he ▁force fully ▁supported ▁the ▁Union ▁– ▁he ▁advoc ated ▁am n esty ▁for ▁former ▁reb els . ▁ ▁During ▁this ▁time , ▁he ▁had ▁a ▁summer ▁home ▁over looking ▁the ▁south ▁branch ▁of ▁the ▁Pat aps co ▁River ▁up stream ▁near ▁Orange ▁Gro ve - A val on - Il chester ▁off ▁the ▁main ▁western ▁line ▁of ▁the ▁Baltimore ▁and ▁Ohio ▁Rail road ▁now ▁in ▁the ▁area ▁of ▁Pat aps co ▁Valley ▁State ▁Park , ▁which ▁was ▁dev ast ated ▁by ▁a ▁dis astr ous ▁flo od ▁in ▁ 1 8 6 8 . ▁ ▁Kennedy ▁died ▁at ▁New port , ▁Rh ode ▁Island , ▁on ▁August ▁ 1 8 , ▁ 1 8 7 0 , ▁and ▁is ▁buried ▁in ▁Green mount ▁C emetery ▁in ▁Baltimore , ▁Maryland . ▁ ▁Leg acy ▁In ▁his ▁will , ▁Kennedy ▁wrote ▁the ▁following : ▁ ▁It ▁is ▁my ▁wish ▁that ▁the ▁manuscript ▁volumes