R.J. Van Rowen showing fire extinguisher to Clay Zowarka and T.Dieckow

''Collins Gardens Elementary follows air raid precautions in drill. L-R: R.J. Van Rowen, engineer, shows Clay Zowarka, T.Dieckow extinguisher.''''Since the attack on Pearl Harbor, the children in every school have been practicing air raid drills weekly ''. Each school has had to work out its own problems ''. but the general procedure has been worked out by the Office of Civilian Defense in Washington and instructions issued to all schools'