Lawrie Duff gave us an excellent presentation on his days in the war as an aerial photographer.  He even brought in an actual camera and explained how it worked.  Five seconds after a bomb exploded the aircraft would take a photo.  The film was fifty feet long and five inches wide and thicker than regular film.  He also explained the process of developing the film and then printing pictures.  These pictures were sent to Intelligence for analyzation.  He was not yet 21 years old!  He volunteered after the war was over to stay in the Army of Occupation in Hamburg, Germany.  They were very hospitable and he met many interesting people.