Lady Bird & Mary Lasker work on LBJ Library; Lady Bird chooses paintings for Cedar House and Davis House; Davis daughter to work at KTBC; Lady Bird to Luci Nugent's home; Lady Bird picks up Mary Lasker at airport; Lady Bird & Mary Lasker to University of Texas to meet Dr. Harry Ransom and see the campus; fly back to LBJ Ranch; hair styled; dinner for 24 people; entertainment by folk singer