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. His middle name, 'S', honors his grandfathers, Anderson Shipp Truman and Solomon Young. A brother, John Vivian, was born soon after Harry, followed by sister Mary Jane. Truman's ancestry is primarily English with some Scots-Irish, German, and French. A new special committee was set up under Truman to conduct a formal investigation; the Roosevelt administration supported this plan rather than weather a more hostile probe by the House of Representatives. The main mission of the committee was to expose and fight waste and corruption in the gigantic government wartime contracts.