seeking ancestors of John F Keeble, Lowestoft

My grandfather was John Frederick Keeble, born Feb 11 1890 at Lowestoft in Suffolk. He emigrated to Toronto, Canada, and there married Evangeline Ellen Maude Button of Saxstead and Dannington Suffolk, who was born in 1891 to John and Eliza Button (nee Ward), whose mother may have been Eliza Neuthan or Neutham.

John F Keeble had an uncle, also named John Keeble, who was a chess champion of some kind, and, I believe, Chess Editor of the Norwich Mercury.

Beyond this I have no knowledge. Can anyone help?