First Johnson family Christmas in the White House; LBJ to Australia for funeral of Prime Minister Harold Holt; LBJ calls from Air Force One asking how "rocking chair" interview went; Lady Bird & Lynda Robb shop at Saks; lunch with Lynda & Chuck Robb; reception for government officials; Lady Bird & Hubert Humphry in receiving line; dinner with Chuck & Lynda Robb; Lady Bird records diary; Lady Bird has massage & watches tv; news stories from Australia