Court of Appeals for the Tenth Circuit June 1956 casesFlournoy v. HewgleyChristner v. Poudre Valley Cooperative Ass'nCities Serv. Gas Producing v. Fed. PowerAtterson v. United StatesLeonard v. United StatesGrundman v. Chicago, Rock Island & Pacific RailroadFourt v. United StatesIn re Sweet's EstateAmen v. BlackChoctaw & Chickasaw Nations v. SeayLehenbauer v. United States