> Khalid performed the ceremony over the Channel with Gladys taking the name Khair ul Nissa.

"Khair ul* Nissa"?! This cannot be a coincidence? That was also the name of a young Hyderabadi noblewoman who married the earlier English convert to Islam, James Achilles Kirkpatrick** [1][2]. It caused controversy in Hyderabadi society at the time, but after Kirkpatrick's death, it became widely(?) seen in England as having been a devoted relationship and a very romantic story. IIRC it was Thomas Carlyle who said Kirkpatrick had "scaled walls for" Khair un Nissa. So I will guess that Gladys had heard that story.

[1] https://en.m.wikipedia.org/wiki/James_Achilles_Kirkpatrick

[2] Dalyrumple. White Mughals.

* Shouldn't that be "un"?

** How good is that name?