135 P.2d 317 MARY FRANCES YARNELL, by her guardian ad litem C.O. Yarnell, et al., Appellants, v. MARSHALL SCHOOL DISTRICT NO. 343, Respondent.[1] No. 28949.The Supreme Court of Washington. Department Two. March 23, 1943. [1] Reported in 135 P.2d 317. [1] SCHOOLS AND SCHOOL DISTRICTS — TORTS — INJURY TO STUDENT — MAINTENANCE OF PLAYGROUND […]