Who was the president of the United states in the 1930s?

Herbert Clark Hoover was the President of the United States in 1930.

Herbert Hoover (born August 10, 1874 in West Branch, Iowa; died October 20, 1964 in New York, New York) succeeded Calvin Coolidge as the thirty-first President of the United States, serving between March 4, 1929 and March 4, 1933, including the whole of 1930. Hoover lost re-election to Franklin Delano Roosevelt in 1932 November.