Truman's Appointees

The transcript discusses President Truman's appointment of Fred M Vinson as Chief Justice of the United States Supreme Court. It highlights Vinson's background as a 56-year-old native of Kentucky and his previous role as Secretary of the Treasury. Additionally, it mentions John W Snyder, a former Saint Louis banker, who was nominated by the President for a significant position.

Who was the President that nominated Fred M Vinson as Secretary of the Treasury?

What was Fred M Vinson's profession before his nomination?