I am trying to find out what happened to my Great Grandfather, Ernest Sawle of Beacon/Camborne, Cornwall.

It appears that Ernest married Lillian Marion Richards in 1905. We know they had two children; Ernest Henry Howard (my father's father), and Reginald Bennett, but searching the internet had led us to believe that there were two other children, Garfield and Clifford Gordon.

Ernest Henry Howard was told (by family who brought him and Reginald up)that his father died in a mining accident aged 26, and that Lillian abandoned the boys.
I can't find a death certificate for Ernest Sawle, and it looks likely that we may not have the whole story.

Does anyone have any information that may shed some light on what happened to Ernest, and indeed Lillian?