Okay, so this is what happens... you buy a pile of books at auction and you get all excited and you forget yourself. I've only been working on elements of Gleeson White's story for two or three years now after all...! By way of correction to the post below I am compelled to confess that I got myself confused. In fact, GW worked for the publisher George Bell doing design work and it was the Bell family who were present in Christchurch in the 1890s along with GW and, of course, Frederick Rolfe Baron Corvo.
Anyway, by way of apology for misleading everyone, the book above is known to be designed by GW.