Read something the other day about a writer who'd posted an excerpt of one of her books and she got an email from some 'concerned person' that the names of her characters were the same as characters in a television show. The implication was that she had 'copied' those names and used them in her book. The male character (the hero) had an unusual name but it is 'out there' and has been for a very very long time. The woman's name? Ordinary in every way. We've all known someone by this name and have read it a gazillion times in a million books. AND she wasn't a central character in this author's story.
Let me just say this. There are no new plots or new names. Everything has been used before in some way, shape or form. What makes each story different is the individual author's voice. An author who uses the pen name Nora isn't guilty of stealing from the other very famous Nora. If you have a character named Mary are you 'stealing' from the other authors who have heroines named Mary? Get my drift? Yes, there are real issues involving plagarizm out there but this involves someone writing the exact thing with no variation of plot twists and lifting exact passages from another book. I'm not an expert on this issue by any means. I've never been accused of it nor known anyone who has but most authors read about this stuff.
We all want to be original, to write something different and unique but the simple fact is this, there will always be something in our story that has been done before. I honestly believe we must just relax, write the story of our heart in our own way and not worry about the rest. Make sense?