[1] Mason was the last FTC chair to be selected by the Commissioners, rather than being designated by the President of the United States.
[2] He was elected to the first Illinois State Aviation Commission in 1927, and became General Counsel to the National Industrial Review Board in 1934, and counsel to the Senate Judiciary Subcommittee investigating the National Recovery Act the following year.
[2] In 1945, President Harry S. Truman appointed Mason to the Federal Trade Commission,[3] where he served until 1956.
On June 14, 1954, Mason received an honorary Doctor of Laws degree from Northwestern University.
[2] Mason died at Birch Manor Nursing Home in Oak Park, Illinois, at the age of 89.