Lynda Johnson Robb, right, speaks during the Enduring Legacies of America’s First Ladies conference as she is joined on stage by, from left to right, Barbara Pierce Bush, Jenna Bush Hager and Steve Ford Thursday, Nov. 15, 2012, in Austin, Texas. The children of three presidents discussed life in the White House as part of a conference on first ladies at the Lyndon B. Johnson Presidential Library. (AP Photo/David J. Phillip)