'I had the best job in America,' she wrote in a 1994 memoir describing her time in the White House. 'Every single day was interesting, rewarding, and sometimes just plain fun.' In this May 11, 1994, file photo, former first lady Barbara Bush, right, playfully strains to hear a reporter's question while posing with other former first ladies, at the U.S. Botanic Garden in Washington. Joining Barbara Bush, from left are; Lady Bird Johnson, Betty Ford and Nancy Reagan. | AP