▁the ▁line ▁that ▁otherwise ▁forms ▁Nem aha ▁County / O to e ▁County , ▁but ▁is ▁considered ▁a ▁prec inct ▁( equ ivalent ▁of ▁a ▁town ship ) ▁of ▁Nem aha ▁County . ▁Maps ▁inter change ably ▁refer ▁to ▁it ▁under ▁both ▁McK iss ick ▁Island ▁and ▁McK iss ick ' s ▁Island . ▁However , ▁the ▁Supreme ▁Court ▁r uling ▁calls ▁it ▁" Mc K iss ick ' s ▁Island ." ▁ ▁History ▁A ▁map ▁of ▁the ▁river ▁attributed ▁to ▁Robert ▁E . ▁Lee ▁in ▁ 1 8 3 7 ▁showed ▁the ▁island ▁on ▁the ▁Neb r aska ▁side . ▁ ▁On ▁March ▁ 1 , ▁ 1 8 6 7 , ▁Neb r aska ▁entered ▁the ▁union ▁with ▁officially ▁recognized ▁boundaries ▁including ▁McK iss ick ' s ▁Island . ▁ ▁Missouri ▁had ▁extended ▁its ▁border ▁to ▁the ▁Missouri ▁River ▁in ▁north west ▁Missouri ▁in ▁ 1 8 3 6 ▁in ▁the ▁Pl atte ▁P urchase ▁and ▁did ▁not ▁claim ▁the ▁island ▁when ▁those ▁borders ▁were ▁drawn . ▁ ▁On ▁April ▁ 2 4 , ▁ 1 8 6 7 , ▁the ▁ 1 8 6 7 ▁Manh attan , ▁Kansas ▁earth qu ake ▁( 5 . 1 ▁on ▁the ▁Rich ter ▁magnitude ▁scale ) ▁occurred ▁ 1 3 0 ▁miles ▁from ▁the ▁island , ▁sh aking ▁Missouri , ▁Kansas , ▁Neb r aska ▁and ▁Iowa . ▁ ▁The ▁qu ake ▁was ▁near ▁the ▁Nem aha ▁R idge . ▁While ▁there ▁was ▁no ▁reported ▁direct ▁connection ▁to ▁the ▁earth qu ake ▁and