Tom Campbell Clark (1899-1977) served the United States for more than 20 years as President Harry S. Truman's attorney general and as a Truman appointee to the Supreme Court.

Dallas-born Tom Campbell Clark's soft-spoken drawl never disguised what for 22 years was one of the most influential legal minds in post World War II America. During four years as President Harry S. Truman's first attorney general (1945-1949) and for 18 years as one of Truman's four Supreme Court appointments (1949-1906), Tom Clark shaped American legal history.

Born September 23, 1899, to a prominent public family in Dallas Democratic party circles, Clark was raised a Presbyterian, as his Scotch-Irish ancestry predicted. He served for a short time in World War I and afterwards attended the University of Texas, graduating with a Bachelor's degree and an L.L.B. He joined his family's law firm in 1922. Two years later he married Mary Jane Ramsey, daughter...