When I said it's debatable to some extent, I had something like this in mind: http://www.fairmormon.org/perspectives/fair-conferences/2006-fair-conference/2006-zina-and-her-men-an-examination-of-the-changing-marital-state-of-zina-diantha-huntington-jacobs-smith-young Meaning in the ceremony wherein Brigham was sealed to Zina, she was also sealed to Joseph with Brigham as proxy.  to make oddness more real of the event, her first husband Henry Jacobs participated as witness to the even