Some of the mis-hearings are understandable, but some not so much. We have a daughter of one of the Maryland Carrolls
(O'Carrolls of Eile) named Atheliza, which has created all kinds of fun for census and genealogy folk. The name was popular among the families of Counts of Flanders, Holy Roman bigwigs, and Norman knights in the British Isles. It apparently has
several forms, depending on the language of the family.

My ggg-grandfather sold a Revolutionary land grant, and the document, written in one hand (not his), spelled his name three different ways on the same page.