A man called & asked for a relative by name.  Without revealing the relationship, I said that no one by that name lives here.  He then asked if he is not living here now, or he has never lived here.  I said that he never lived here.  He then asked me if I had a number for this person.  I said, "No, I don't."  He thanked me and hung up.  He did not identify himself, nor is his number available on the computer.  The computer did say that the call originated in West Chester, MD