Citation Codes Equivalent Citations citation codes Docket Number 1 M Attorney(S) Mr. Thurgood Marshall, New York City, for petitioners. Mr. Richard C. Butler, Little Rock, Ark., for respondents. See more information ... Smart Summary Please sign up to generate summary. John Aaron v. William G. Cooper Mr. Solicitor General, J. Lee Rankin, Washington, D. C., for the United States.