John A. Carroll, 82, a Colorado Democrat who had served in the House of Representives from 1947 to 1951, and the Senate from 1957 to 1963, died of arteriosclerosis Aug. 31 at his home in Denver.

During his years in Congress, Sen. Carroll was known as a strong supporter of civil rights, civil liberties, and public health bills, and as a friend of organized labor.

During his years in the House, he had served on its powerful Ways and Means Committee. In the Senate, he was a member of the Judiciary, Public Works, and Interior committees.

From 1951 to 1952, he had been a foreign policy adviser to President Harry S Truman.

Sen. Carroll was a 1929 graduate of Westminster Law School in his native Denver. During the 1930s and early 1940s, he was an assistant U.S. district attorney, district attorney of Denver, and a regional lawyer with the Office of Price Administration. He was an Army veteran of both world wars.

After serving two terms in the House, he ran unsuccessfully for the Senate in 1950 and again in 1954. He was defeated for reelection to a second Senate term by Peter H. Dominick in 1962. After that, Sen. Carroll returned to Denver where he practiced law.

His wife, the former Dorothy R. Doyle, died in 1982. Survivors include a daughter, Diane MacDonald of Denver; two brothers, Charles, of Santa Rosa, Calif., and Matthew, of Las Vegas; a sister, Charlotte Smith of Los Angeles, and three grandchildren.