Oscar Littleton Chapman was the U.S. Secretary of the Interior, during President Trumans administration, from 1949 to 1953.
Chapman was born in Omega, Virginia, to James Jackson Chapman, a Virginia farmer, and his wife, Rosa Archer Blunt. He attended the University of Denver, where he earned his LL.D., and Westminster Law School in Denver, and later graduated from the University of New Mexico.
Source: Wikipedia