When she began taking instruction in the Roman Catholic faith last September, some people said it was probably just a phasepossibly because she was dating Paul Betz, a Catholic premedical student. It wasn't that way. On the afternoon of her 18th birthday, accompanied by the President, Mrs. Johnson and Sister Lynda Bird, Luci Baines Johnson rode to Washington's St. Matthew's Cathedral, where she was baptized a Roman Catholic. That now gives the ecumenical First Family three religious affiliationsLyndon Johnson is a Disciple of Christ, Lady Bird and Lynda Episcopalians.
"I know what appealed...