When employees of Great Bend USD 428 attend their Back to School Celebration next Monday, nearly 100 students should already be there.Members of the Great Bend High School marching band reported for duty earlier this month, Director Mark DeWald said. Their first public performance will be at 8 a.m. Monday, during the celebration.During the annual band camp that started Aug. 1, musicians, section leaders and drum majors worked on marching formations, rehearsed music and were issued uniforms.GBHS has 93 students enrolled in band this semester, DeWald said. “Rehearsals are mandatory for all band students who wish to travel with the band to the Labor Day Parade, KSU Band Day, and the Kansas State Fair,” DeWald said before camp got underway.