I am also looking into the Webley family since very recently.
And particularly into Ernest Webley 1888 from Bromsgrove, so I am extremely interested what you have on his ancestors.
I can tell you why you did not find him in the 1911 Census, because he emigrated to Australia where in 1916 he joined the ANZAC forces age 28 already a widower. When enlisting he was a "coachbuilder", and after the great war he worked on the rail in Australia.
Like himself, he got twins with his frist wife, although the wife and one child died.
He was sent of to World War I in 1917 and did not return before june 1919.
He later re-married, and got a few more kids. I visited his grandchild last week in Australia , as he married my wife's cousin. I am a long time pedigree researcher in the Netherlands, but for the Webley's in Australia I am now researching (since last week).
My wife's cousin is from Dutch decent an I completed her pedigree up to 9 generations.
I have more information at home, and particualarly about his offspring in Australia.
Again, I am very curious on what you already have.
regards, Bart-Jan van den Boogaart, the Netherlands