Senator James McMillan was a prominent American politician who served as a Republican senator from Michigan from 1923 to 1933. He was known for his strong support of business interests and played a significant role in shaping policies during the early years of the Great Depression. Born on March 24, 1858, in New York, McMillan moved to Michigan where he became involved in the lumber industry. His experience in business influenced his political career, and he was an advocate for economic growth and infrastructure development throughout his tenure in the Senate.