Lloyd attended public schools in Washington State, California, and Oregon. He attended the University of Oregon, 1940-1942 but did not graduate. He served in the United States Navy as a naval aviator, 1942-1963 (retired). He attained his B.A. at Stanford Universityin 1958, and his M.A. at University of Southern California in 1966. He pursued a public relations and advertising career, later a teacher and instructor of political science at Mt. San Antonio College, Walnut, California, 1970-1973.
He was a member of the Democratic State Central Committee, 1968-1972. He served as City Councilman of West Covina, California 1968-1975, including as Mayor of West Covina, 1973-1974. He was elected as a Democrat to the Ninety-fourth, Ninety-fifth, and Ninety-sixth Congresses, serving January 3, 1975-January 3, 1981. He unsuccessful ran for reelection in 1980. He is a resident of West Covina, California.