An Englishman in his Library

No it isn't your humble author - it is a photograph I found in an old frame I was reusing - I thought I would post it and the details of who it was in case anyone out there in Interwebby Land wanted a snap of an ancestor. On the back was written:
John Frederick Marchant
59, Berners Street
London W1
Died April 6th 1940
Born March 27th ?
Son of William Marchant and Maria Marchant (nee Potbury of Sidmouth Devon)
So if he is a relative of yours give me a shout and I will send it on.