HELP NEEDED! O'Neil Family Fencehouses, Houghton Le Spring.

[toneil461]

[B][B]Advice needed on how I can find out what became of my dads mum![/B]

I'm researching my dads history. My dad Edward O'Neil was born at No 10 Cement Street,FenceHouses, Houghton le Spring in October 1922. His mother Frances O'Neil was born in 1893 at the same address and to my knowledge my dad was an only child.
Frances dads name was James O'Neil a coal miner and her mum was Margaret Ann O'Neil (maiden name: Pattison)
Frances brothers were Roderick, Thomas, Harry and William. Sisters were Catherine and Theresa all living at 10 Clements St according to the 1911 census.
My dads mum Frances born 28 Aug 1893, I believe may have died when my dad was young (approx 14/15 yrs old) and was bought up by his uncle 'Roderick' .(apparently came home from work to be told his mum had died) I cannot substantiate her death!

I am unable to establish the cause of death of my dad’s mum Frances as it does not appear on any records.
Hope someone can advise/Help
Rgds
Terry..