 From its completion in 1955 to the end of Eisenhower 's second term on January 20 , 1961 , the President spent 365 days total on the Gettysburg farm . The longest of these stays was 38 days in late 1955 , while recovering from a heart attack he had suffered that September . After 1955 , the Eisenhowers spent most weekends and summer vacations at the Gettysburg farm . They sometimes went to both the Gettysburg farm and Camp David , prompting one person to call Camp David " an annex to Gettysburg " . 
