Surely there is more than one?
Hi Paul. Welcome to the wiki.
I'm sure that there are many other Lulu publishers in the UK with books relating to games. There may even be a few members of this wiki who do, but not all of the members here add details for their books. I'd say there is, considering her output, a distinct possibility that Susan Watkin will at some point be writing a book about Victorian games.
"One does not discover new lands without consenting to lose sight of the shore for a very long time." ~ André Gide