Hi
In the 1911 census there is an Ellen Young widowed born Mountnessing and living in Prittlewell which was in the Rochford registration district untill 9 Nov 1913 and was then abolished to become part of Southend on Sea.
Ellen Samuel married George Young 21 Sept 1889 at St Giles, Mountnessing.
Also in the 1911 census aswell as the children there is a boarder Fred Clarke, perhaps this could be the father??
Kevin