So who really put the Powell into the Powell-Davies?

If you happen to have come upon this post, then please be warned that this is really a set of notes for my own benefit - otherwise (as I have done before now!) I'll forget what I've worked out and will have to start from scratch all over again ... UPDATE 22.08.25 - and it appears ALL of these possible leads are dead-ends - so the puzzle remains unsolved ... After working out fairly conclusively the origins - and certainly the later life - of Mary Powell, my great-grandmother, there's a puzzle still to solve. Who did 'Mary Davies' of Glyn Neath marry in the 1870s to become 'Mary Powell' by the time my grandfather was born in 1880? And, if so, what became of her former 'Powell' husband for her to be a 'widow' when she then married Thomas Morgan in 1883? Searching for a Mary Davies + "Mr. Powell "marriage There is, of course, the possibility that no such marriage took place or, if it did, it wasn't formally recorded. However, if t...