Japanese to English Art/Literary Names (personal, company)

This is apparently the name of a once well-known art collector who donated to the Brisith Museum. Possibly British, probably from the late 19th or early 20th century. The first name doesn't sound like any name I can think of (Is Humour a name?). Surname could be Hopples, Hopless, Hopeless...

The author is deceased.

Any useful ideas or leads appreciated.