Thursday 28 X, the MARK OF AN ILLITERATE ANCESTOR. ( or was it?)
I have several marriage certificates that show an X, in place of a signature, often for both parties and have assumed that they were both illiterate. But you can be wrong. Sometimes, one would sign with an X, so as not to ‘show up’ the party, who couldn’t sign. Check further, for other documents and you might be surprised.