FILE - In this Dec. 24, 1967, file photo President Lyndon Johnson, Lady Bird Johnson, and Yuki, the White House pet, pose beside the family Christmas tree, a Norway spruce, in the Yellow Oval Room on the second floor of the White House in Washington. After President John F. Kennedy's assassination on Nov. 22, 1963, a month of mourning was declared. But on the evening of Dec. 22, Johnson lit the National Christmas Tree behind the White House, and the next morning the black mourning crepe that had been draped over White House doorways and chandeliers was replaced with holly, wreaths and mistletoe. Lady Bird Johnson later wrote, 'I walked the well-lit hall for the first time with the sense that life was going to go on, that we as a country were going to begin again.'
(AP Photo/File)