Richardson career included presidency of the Urban League of St. Louis in 1944 and serving as Dean of the Lincoln University Law School from 1944-1953. Richardson was then appointed as the first black member of the US Board of Parole by President Eisenhower. Richard served on the Board of Parole from 1953 - 1957, functioning as chairman from 1954 - 1957. In 1957, Eisenhower appointed Richardson to the US Court of International Trade. Richardson remained on the bench until his death in 1982.