Hi Deborah, Yes, I am certain it is the same person. I had already looked at your website. I knew that Ernest and Minnie's eldest son had moved to "the west country" and that there were twins in his family. Following Ernest there were eight other children.
Look up the census for 1901. They lived at Tooting Graveney (I think that is the spelling). My own father was not born until 1907 and he died in 1986. I have researched the family as far as I have been able, but the information you have about Ernest Wilfred is new to me. I am thrilled! I met Minnie May once only but knew several of her family - my aunts and uncles.