Maybe not—he probably only saw the incorrect spelling all his life and his mother may not have considered it important to make the correction. He certainly didn’t know how Sr. pronounced it. He was closer to that when he went by Barry. I’ve also noticed that whenever I’ve seen the name or the word in other places it was never spelled with the CK.
Why are the divorce papers spelled incorrectly? Then you are saying someone else had the papers done for her?
Perhaps his mother didn’t know how to spell the name. After all, she never lived with the guy.