The Santa Fe office closed on June 28 , 1963 , and McKibbin retired . There was a brief ceremony conducted by Bradbury , who presented a memorial plaque . When Oppenheimer was awarded the Atomic Energy Commission 's Enrico Fermi Award in 1963 , he invited McKibbin to join him at the White House reception . She intended to do so , but the assassination of President John F. Kennedy , whom she had met when he toured Los Alamos on December 7 , 1962 , cast a pall over the event , and she decided not to attend . Oppenheimer received the award from the new President , Lyndon B. Johnson
assassination
Assassination of John F. Kennedy
Dorothy McKibbin