5 to 7 Boy Escapees Remain at Large; Plainfield, Ind., Oct. 21-—j Five of seven youths who partlct-, inated in the largest mass escape i in the history of the Indiana Boys : ; school still were free today. : ■ Charles Manson. hi. Indianapolis.. and William Kobcrt Barker. 17.; Martinsville, were apprehended last, • night less than 24 hours after they j ; fled with the others. !i Wendell Fcwell. school • supcrm-; jtendcnt. said the boys escaped: through a door In a building where they were changing clothes in a llockcr room getting rady for anevening meal.Fcwell identified the outers as Thomas Riggs, IS, Indianapolis; Kerman Measamore, 1”* Shelby* ville; Harold Fred Had. 17, La-Forte; William SUcox, 17, Indianapolis, and William Shuey, 17, Clinton.