Supreme Court of Oklahoma May 1960 casesSt. Louis-San Francisco Ry. Co. v. McCurtain CtySouthwest Chemical Supply, Inc. v. Oklahoma Tax CommissionDowns v. Longfellow Corp.Happel v. BellStrickland v. HetheringtonState v. WilliamsonMitchell v. LindlyPettit Motor Company v. Pettit