During the majority of the Great Depression, the President of the United States of America was Franklin Delano Roosevelt. However, the Great Depression began in 1929, when Herbert Hoover was in office. Franklin Roosevelt did not assume the presidency until 1933.
When Franklin Roosevelt became president, the nation was experiencing the worst of the Great Depression, and he started several programs to alleviate the economic pain and get the country's businesses going again. His presidency saw the beginning of the end for the gold standard, the initial Social Security payments and a great growth in government involvement in the economy. As a result of his stimulus programs and the winding down of World War II, the country was on the cusp of a long economic boom when Roosevelt died during his fourth term in 1945.