Final answer:
Warren G. Harding was not President during the onset of the Great Depression; it began during Herbert Hoover's presidency after Harding's death in 1923.
Step-by-step explanation:
It is false that Warren G. Harding was President of the United States when the Great Depression started. The Great Depression began with the stock market crash in October 1929, during the presidency of Herbert Hoover. Warren Harding, who was the twenty-ninth president, had already passed away in 1923, and his presidency was followed by that of Calvin Coolidge before Hoover took office.
Harding was known for his conservative policies and administration scandals, but he was not president during the onset of the Great Depression. It was Herbert Hoover who was in office at the time of the economic downturn, which continued into the presidency of Franklin Roosevelt.