The FPC also regulated interstate electric utilities and the natural gas industry.
In June 1939, President Roosevelt appointed Leland Olds to the FPC, who served as chairman from January 1940 until 1949.
However his reappointment in 1949 failed in the Senate due to concerns about his suspected previous sympathy to communism.
From its founding in 1920 until its first reform in 1930, the FPC did not have its own commissioners; rather, it was chaired ex officio by the Secretaries of War, Interior, and Agriculture.
Following the 1930 reforms, FPC had its own commissioners, with the following commissioners holding the title of Chairman of the Federal Power Commission: Source:[2] Source:[3] On October 1, 1977, the FPC was replaced by the Federal Energy Regulatory Commission.