Lynda Johnson's wedding day; White House set up for dressing & hairstyling; Lady Bird has lunch in Solarium & checks on wedding preparations; LBJ & Lady Bird give Lynda Johnson & Chuck Robb their wedding gift; Lady Bird describes the wedding; photos; NBC airs special on wedding; guests mentioned; LBJ remembers Lady Bird' wedding dress; conspiracy to keep grandson, Lyn, away from wedding; LBJ helicopters with Luci & Pat Nugent to Air Force One; Lady Bird & family dine & watch tv specials; massage