141 N.W.2d 477 SOUTH DAKOTA HIGH SCHOOL INTERSCHOLASTIC ACTIVITIES ASSOCIATION et al., Appellants v. ST. MARY’S INTER-PAROCHIAL HIGH SCHOOL OF SALEM et al., Respondents File No. 10272.Supreme Court of South Dakota. Opinion filed April 8, 1966 1. Associations. Individuals who held office as board of control and as executive secretary of unincorporated high school interscholastic […]