ENTERPRISING COUPLE: Harvey and Audrey Bilker as they were in 1971, at the time when their writing career was getting off the ground. They had a particular interest in science fiction, but also had nonfiction titles. (Supplied Photos) During the 1970s, Barnegat Township resident Scott Bilker’s parents were prolific authors. They had a particular interest in science fiction, and in 1973, their shor