You may want to look at Talblack's post # 15. He explains some of the legal issues involved.
Thank you for the head's-up. After reading Talblack's post I found myself wondering if this (requiring legal name on tombstone) would be the same if the remains were cremated,then taken to another resting place and the name given -- in this case -- as "Gwen"? Probably not, but I was just wondering if there was a way around it. I mean outside of a heft bribe or something. (<- joking)