Federal Power Commission

In 1935, President Franklin D. Roosevelt signed the Federal Power Act, which charged the Federal Power Commission with overseeing interstate electricity sales.

He later launched his career as an engineer and then lawyer with the authority, before following his boss to Washington in 1961 to join the Federal Power Commission.

Leon Slavin, 91, an energy officer who began his career in 1958 at the Federal Power Commission and retired in 1989 as chief of the Energy Department’s energy regulatory division, died Feb. 19 at a care center in Potomac, Md. The cause was pancreatic cancer, said a daughter, Meredith Sevi.

After the war, his civilian jobs included employment with the Bureau of the Budget, the Federal Power Commission and the Interior Department.

As Supreme Court Justice Hugo Black wrote at the end of his now-famous dissent in the 1960 Indian treaty case Federal Power Commission v.