▁New ▁York ▁Times ▁described ▁it ▁as ▁" one ▁of ▁the ▁new est ▁interests ▁of ▁medical ▁research ers ". ▁ ▁Death ▁and ▁fun eral ▁ ▁Kennedy ▁died ▁at ▁ 4 : 0 4   a . m . ▁on ▁August ▁ 9 — " des p ite ▁a ▁des perate ▁medical ▁effort ▁to ▁save ▁him " — h aving ▁lived ▁ 3 9 ▁hours ▁and ▁ 1 2 ▁minutes . ▁At ▁the ▁time ▁of ▁the ▁infant ' s ▁death , ▁the ▁president ▁was ▁outside ▁the ▁room ▁with ▁the ▁hyper bar ic ▁chamber ▁with ▁his ▁brother , ▁Att orney ▁General ▁Robert ▁F . ▁Kennedy . ▁ ▁The ▁First ▁Lady , ▁then ▁ 3 4 , ▁remained ▁at ▁Ot is ▁Air ▁Force ▁Base ▁Hospital ▁recover ing ▁from ▁the ▁ca es are an ▁section . ▁She ▁was ▁told ▁of ▁her ▁son ' s ▁death ▁by ▁Dr . ▁Wal sh . ▁( He ▁would ▁console ▁her ▁again ▁after ▁her ▁husband ' s ▁assass ination ; ▁he ▁was ▁ab o ard ▁Air ▁Force ▁One ▁with ▁her ▁as ▁she ▁returned ▁from ▁Dallas ▁with ▁the ▁president ' s ▁body ). ▁She ▁was ▁given ▁a ▁sed ative ▁and ▁sle pt ▁until ▁the ▁president ▁fle w ▁from ▁Boston . ▁Very ▁little ▁was ▁said ▁about ▁the ▁family ' s ▁reaction ; ▁White ▁House ▁Press ▁Secretary ▁Pierre ▁Sal inger ▁stated ▁of ▁the ▁First ▁Lady ' s ▁condition , ▁" G iven ▁the ▁circumstances , ▁her ▁condition ▁is ▁satisf actory ." ▁The ▁president , ▁who ▁had ▁reported ly ▁only ▁sle pt ▁four ▁hours ▁since ▁the ▁birth