Mary Ellen PLATT, et al., Appellants, v. DISTRICT OF COLUMBIA, et al., Appellees. No. 82-1560.District of Columbia Court of Appeals.Argued June 28, 1983. Decided September 29, 1983. Appeal from the Superior Court, District of Columbia, Carlisle E. Pratt, J. James J. Fitzgibbons, Wheaton, Md., and Joseph E. Schuler, Washington, D.C. with whom Joseph C. Roesser, […]