Edward's father died around 1909/10?
Because Edward, his widowed mother, and a brother are in the Medway Union Workhouse, Chatham on the 1911 census.
You'll need to look up that census yourself, because copyright laws stop us telling what is on there.
His parent's marriage:
December qtr 1894
Medway district vol 2a, page 1001
Anderson, William
Harvey, Frances Lydia