Share '9/11 TRIBUTE: Courtyard with 9/11 memorial that honors 4 CHS alumni is rejuvenated'

By Christina Hernandez, Managing Editor   There was a “calmness” on Sept. 11, 2001, the retired Columbia High School teacher, Carol Petrallia, recalled late last month sitting in the high school courtyard.    It was an ordinary day in weather, activity and sound, she remembers, as the South Orange-Maplewood district was in full swing, opening its doors a couple days before.   Petrallia said she c…