US Congressman. Also known as Carlton Mobley. He was born the only child of Jessie Alden Mobley and Lillie Pearl Mables Mobley near Hillsboro, Georgia. He was educated in local common public schools and at Gray High School in Macon, Georgia. His father died on June 29, 1909, at the age of 40, and his mother remarried to Joseph Benjamin Jackson Sr. on January 10, 1915, in Jones, Georgia, and they would have two sons in 1921 and 1923 which would become William's step-brothers. He later attended and graduated from the Mercer University Law Department in Macon, Georgia, in 1928. While attending Mercer University he was also a member of the Sigma Pi Fraternity. Following his graduation from university, he was admitted to the bar that same year and commenced his practice of law in Forsyth, Georgia. He then decided to enter politics and he served as a Secretary to United States Representative Samuel Rutherford from 1929 to 1932. He then decided to run for a seat in the United States Congress and he was elected to the Seventy-Second Congress to fill the vacancy left open by the death of United States Representative Samuel Rutherford on February 4, 1932. A Member of the Democratic Party, he then served Georgia's 6th District (Seventy-Second Congress) in the United States House of Representatives from 1932 to 1933. He was not a Candidate for nomination in 1932. After his term in the United States Congress expired on March 3, 1933, he was succeeded in office by United States Representative Carl Vinson. At the time of his being elected to the United States House of Representatives, he was one of the ten youngest people (he was 25 years old at the time) ever to be elected to that post. He then served in Georgia's Executive Department under then-Governor of Georgia Eugene Talmadge from 1934 to 1937. He also served as an Assistant Attorney General of the State of Georgia from 1941 to 1943. During World War II, he served with the rank of Lieutenant Commander in the United States Navy from 1943 to 1946. Following his military service, he resumed his practice of law in Macon, Georgia, for a few years. He then served as an Alternate Delegate to the Democratic National Convention from Georgia in 1952. He was appointed an Associate Justice of the Supreme Court of Georgia and served in that position from June 1, 1954, to December 1, 1960. He was reelected again as Associate Justice of the Supreme Court of Georgia in 1960, and 1966 and served until his term in office expired on December 31, 1972. He was also elected a Presiding Justice of the Supreme Court of Justice in August of 1969, and lastly as Chief Justice of the Supreme Court of Georgia from 1969 to 1974. He retired from the bench shortly thereafter due to his age, physical problems, and the Supreme Court's increasing workload. Following his retirement from the Supreme Court of Georgia, he lived in Atlanta, Georgia, until his death. He passed away on October 4, 1981, at the age of 74, in Atlanta, Georgia. His funeral was held at the First Baptist Church in Forsyth, Georgia, and he was buried in the Forsyth City Cemetery in Forsyth, Georgia. He was married to Margaret Elrod Mobley who passed away on June 16, 2000, at the age of 91. She was buried beside her husband. He was a Deacon of the Second Ponce de Leon Baptist Church, and a lifelong member of several prominent organizations including the Georgia Bar Association, American Bar Association, Sigma Pi Fraternity, Phi Alpha Delta Legal Fraternity, and the Atlanta Kiwanis Club and Capital City Club. He was also a Director Emeritus of the Georgia Federal Savings and Loan Association.