The richest person in the 1930s was John D. Rockefeller, founder of Standard Oil.
Rockefeller's wealth was amassed primarily through his oil empire, which dominated the industry during the late 19th and early 20th centuries.
His fortune was estimated to be around $1.4 billion in 1937, which is equivalent to approximately $27 billion in today's dollars.
Rockefeller's immense wealth was a testament to his business acumen and the vast scale of his oil operations.
He was a complex figure, known for both his philanthropy and his ruthless business practices.
Despite the Great Depression, Rockefeller's wealth remained largely untouched, making him the undisputed richest person of the decade.
