Lyndon B. Johnson previously served as U.S. Vice-President from 1961-63 under Pres. Kennedy.
Lyndon Johnson was a Disciple of Christ. He was a member of the Stone-Campbell (Restoration Movement) denomination known as the "Christian Church (Disciples of Christ)."
From: Political Graveyard website (http://politicalgraveyard.com/bio/johnson6.html#R9M0J25R9; viewed 29 November 2005):
Johnson, Lyndon Baines (1908-1973) - also known as Lyndon B. Johnson; "L.B.J."; "Landslide Lyndon"; "Preacher Lyndon"; "The Accidental President"; "Volunteer"; "Light Bulb Johnson" - of Johnson City, Blanco County, Tex. Born near Stonewall, Gillespie County, Tex., August 27, 1908. Son of Samuel Ealy Johnson and Rebekah (Baines) Johnson; married, November 17, 1934, to Claudia Alta "Lady Bird" Taylor; father-in-law of Charles Spittal Robb. Democrat. U.S. Representative from Texas 10th District, 1937-49; elected unopposed 1940, 1942, 1946; delegate to Democratic National Convention from Texas, 1940; U.S. Senator from Texas, 1949-61; candidate for Democratic nomination for President, 1956, 1968; Vice President of the United States, 1961-63; President of the United States, 1963-69. Disciples of Christ. Member, American Legion. Awarded the Presidential Medal of Freedom posthumously in 1980. Died from a heart attack, on a plane en route to a hospital, near San Antonio, Bexar County, Tex., January 22, 1973. Interment at LBJ Ranch, Stonewall, Tex.
From: Peter Roberts, "Lyndon Baines Johnson" page in "God and Country" section of "Science Resources on the Net" website (http://www.geocities.com/peterroberts.geo/Relig-Politics/LBJ.html; viewed 29 November 2005):
Religious Affiliation: Disciples of Christ
"I believe in the American tradition of separation of church and state which is expressed in the First Amendment to the Constitution. By my office -- and by personal conviction -- I am sworn to uphold that tradition." -- Interview, Baptist Standard, October, 1964
"This was the first nation in the history of the world to be founded with a purpose. The great phrases of that purpose still sound in every American heart, North and South: 'All men are created equal'--'government by consent of the governed'--'give me liberty or give me death.' Well, those are not just clever words, or those are not just empty theories. In their name Americans have fought and died for two centuries, and tonight around the world they stand there as guardians of our liberty, risking their lives.
"Those words are a promise to every citizen that he shall share in the dignity of man. This dignity cannot be found in a man's possessions; it cannot be found in his power, or in his position. It really rests on his right to be treated as a man equal in opportunity to all others. It says that he shall share in freedom, he shall choose his leaders, educate his children, and provide for his family according to his ability and his merits as a human being.
"To apply any other test--to deny a man his hopes because of his color or race, his religion or the place of his birth--is not only to do injustice, it is to deny America and to dishonor the dead who gave their lives for American freedom." -- Special Message to the Congress: The American Promise, 15 March 1965