User:SOTO/Forum Archive/The Reference Desk/@comment-5843134-20140315033408/@comment-26975268-20140315035015
We cannot assume something to be true in the DWU just because it is so in the real world. I would not be surprised if the DWU does tell us that — in fact, a quick search tells me that our Elizabeth I articles asserts that AUDIO: Recorded Time tells us that he's her father.
Still, I'd still say no to adding him to the infobox, not just because both marriages are fairly dubious, but also because the link is never made. Wedding has her tell us she's the Doctor's mother-in-law. To make the same connection between her and Ten, we'd have to use three separate, unrelated sources — Day, where Ten marries Elizabeth, TPOT, where Amy marries Henry, and Recorded Time, where we're told Elizabeth is Henry's daughter. None of these three stories even mention another.