Born in Gainesville, Georgia, Sloan read law to enter the bar in 1915.
He was an assistant attorney general of the State of Georgia from 1932 to 1933.
He was a Judge of the City Court of Hall County, Georgia from 1934 to 1945, and then of the Superior Court of Georgia for the Northeast Judicial Circuit, from 1945 to 1948.
[1] On February 19, 1951, Sloan was nominated by President Harry S. Truman to a seat on the United States District Court for the Northern District of Georgia vacated by Judge M. Neil Andrews.
He assumed senior status on August 1, 1965, serving in that capacity until his death on October 22, 1970.