When I began pursuing my genealogy, I quickly learned that the spellings of names was very inconsistent to say the least. I began keeping a log of the spelling variations I would find for each surname. I would share some of the more unusual spellings with anyone within earshot.
It would appear someone has been listening!
Recently one of the children was filling out a form asking for your mother's maiden name. My child looked up and asked "Which spelling should I use? One "t" or two?"