With the same motives - and not because it's intrinsically fascinating or important, here is the story of how my maternal grandparents met - which I had also never known till now.
My grandfather - a sailor, as you will remember - had been widowed and left with two very young children. So he advertised for a housekeeper, and Nell Cadman got the job. Evelyn was Nell's sister, and when she came to Wrexham to visit she and my grandfather hit it off, marrying not long after. And, a bit after that, Nell herself married my grandfather's brother (also a sailor) - which is how my mother and my aunt Ruth (Nell's daughter) came to be double-first cousins.
Anyway, I was given Cadman as a middle name, and my parents often stressed that, as well as being my grandmother's maiden name, it was that of the first (named) English poet - the inspired cowherd Caedmon, whose story is told by the Venerable Bede. I grew up thinking of Caedmon as a close cousin. Though the spelling was a bit off I put that down to the atrocious orthography of Olden Times. More troubling was the fact that Bede's man was from Whitby, while pretty much all the Cadmans in the world hailed from Wellington in Shropshire. (Here's their distribution in 1881, not so long after Evelyn's own parents were born - both Wellingtonians called Cadman, but no relation, as far as they could tell.)
It was all a bit tenuous, in truth; but it may have had some effect in persuading me to consider myself potentially a writer. As for famous Cadmans, I may have to content myself with Evelyn's Uncle Sam, whose visits from being a radio preacher in America caused such a fluster in my mother's childhood home. Whether Uncle Sam would have been content with me is a much more open question.