Lamon took this so seriously that his friend Leonard Swett recounted that in the three months he stayed with Lamon in the Fall of 1864 , he saw Lamon leave every night to go to the White House where he patrolled the grounds . Presidential secretary John Hay adds to this portrait of devotion by noting in his diary that one night he observed Lamon wrap himself up in his cloak and lie down to sleep in front of Lincoln 's bedroom door . Lamon was not in Washington on the night of Lincoln 's assassination , being on assignment in Richmond . In his '' Recollections of Abraham Lincoln , '' Lamon reveals that before he left for Richmond , he implored the president not to " go out at night after he was gone , '' particularly to the theatre . '' " After the assassination , Lamon accompanied the funeral procession to Springfield , Illinois
Lincoln 's assassination
Assassination of Abraham Lincoln
Ward Hill Lamon