No, I do not know if he existed, I'm just offering a suggestion, based on your comment about 2, maybe 3 Williams. That, plus our experience with many misspellings, just made it seem like a reasonable possibility. Sorry that I can't give you anything more substantial, but it looks like a possible way out of the puzzle of 'Peepyatt'. Goodness knows, we've seen stranger things than this in dealing with our name. Ed