Dist of Columbia April 1949 casesInternational Workers Order v. ClarkDistrict of Columbia Cit. P. Co. v. Merchants Mfr. Ass'nHood v. Defense Homes Corp.Chow Kau v. ClarkUnited States v. United States Savings & Loan LeagueButts v. Sears, Roebuck & Co.Douffas v. JohnsonHeckman v. HeckmanUnited States v. E. I. Du Pont De Nemours & Co.