As noted above, people can and do get divorced who have never been married. That is a fact. The exact circumstances that result in a divorce-in-the-absence-legal-marriage apply to the Stanley-Ann divorce case. This being so, it cannot be maintained that proof of marriage was a necessity for divorce.
Yes, they can but the divorce papers would reflect those special circumstances. Dunham’s papers don’t so that can be discounted.
You need to try again.