Tegan Jovanka's husbands

By 2022, Tegan Jovanka claimed to have "seen off" two husbands. (TV: The Power of the Doctor)

Behind the scenes
It is not made clear if either of these two husbands are intended to be William Haybourne. Regardless, Tegan's claim that she's already "seen [him] off" by 2022 would appear to contradict Good Companions' claim that Tegan and William were together until his death in the 2030s.