Truman grew up in Independence, Missouri, and during World War I was sent to France as a captain in the Field Artillery. Returning home, he opened a haberdashery in Kansas City, Missouri and was later elected as a Jackson County official in 1922. Truman was elected to the United States Senate from Missouri in 1934 and gained national prominence as chairman of the Truman Committee aimed at reducing waste and inefficiency in wartime contracts. Truman volunteered for active military service during World War II, but was not accepted, partly because of age, and partly because President Franklin D. Roosevelt desired Senators and Congressman who belonged to the military reserves to support the war effort by remaining in Congress, or by ending their active duty service and resuming their Congressional seats. He was an inactive reservist from the early 1940s until retiring as a colonel in the then redesignated U.S. Army Reserve on January 20, 1953.