Alben Barkley was a Methodist. He was a long-time active member of the Broadway Methodist Church.
From: Political Graveyard website (http://politicalgraveyard.com/bio/barkett-barlett.html#R9M0IOONX; viewed 29 November 2005):
Barkley, Alben William (1877-1956) - also known as Alben W. Barkley; "Dear Alben"; "Little Alby"; "Veep" - of Paducah, McCracken County, Ky. Born in a log cabin near Lowes, Graves County, Ky., November 24, 1877. Son of John Wilson Barkley and Electra (Smith) Barkley; married, June 23, 1903, to Dorothy Brower (died 1947) and Jane Hadley; father-in-law of Douglas MacArthur II. Democrat. Lawyer; McCracken County Prosecuting Attorney, 1905-09; county judge in Kentucky, 1909-13; U.S. Representative from Kentucky 1st District, 1913-27; delegate to Democratic National Convention from Kentucky, 1920, 1924, 1928, 1932, 1936, 1940, 1944, 1948, 1952; candidate for Governor of Kentucky, 1923; U.S. Senator from Kentucky, 1927-49, 1955-56; died in office 1956; Vice President of the United States, 1949-53. Methodist. Member, Delta Tau Delta; Phi Alpha Delta. Died of a heart attack while speaking at the Washington and Lee University Mock Democratic Convention, Lexington, Va., April 30, 1956. Interment at Mt. Kenton Cemetery, Near Paducah, McCracken County, Ky.
Books about Alben W. Barkley: Polly Ann Davis, Alben W. Barkley, Senate Majority Leader and Vice President; James K. Libbey, Dear Alben: Mr. Barkley of Kentucky