Marshall, I'm not an expert on the Hocknell family, but the original listing as Elizabeth being descended from her brother doesn't make any sense whatsoever. Personally, I have an ancestor who was a descendant of two first cousins creating pedigree collapse in my family. I also know it might be possible if her brother were 32 years older than she was. Then, of course, she wouldn't be his sister though she might be his half-sister if he had married her mom after he father died. Sometimes life's a mystery.