Evans was born in Christiansted in Saint Croix, and attended Howard University, Washington, D.C. and the University of California, Berkeley. He was the Virgin Islands Health Commissioner, and appointed Governor of the United States Virgin Islands, serving from 1969 until 1971. He was the first elected Governor in 1970 and served from 1971 until 1975. Evans was a Republican National Committeeman and served as a delegate to the 1972 Republican National Convention and 1976 Republican National Convention.