In 1881, widowed Ellen and children are living in the same house as a James and Hannah Middleton and family. Hannah and most of the Middleton children are born Rainton, same as Ellen and her two eldest children. I think this is Ellen's parents and siblings
There is a marriage Dec qtr 1871, Durham, Ellen Middleton and John Thompson (confirmed on Durham Registrars site that these two married).
1861 census, Wharton St., Coundon,
James Middleton, 33, Coal Miner, b. Ireland, Co. Down,
Hannah Middleton, wife, 30, b. West Rainton,
Mary Jane Middleton, dau, 11, Scholar, b. West Rainton,
Ellen Middleton, dau, 7, b. West Rainton,
James Middleton, son, 4, b. West Rainton,
Thomas Middleton, son, 2, b. West Rainton,
John Thompson, Boarder, 19, Coal Miner, b. Ireland, Co, Down.
RG 9/3709/35/7
The John Thompson living with the Middletons may or may not be Ellens future husband, need the marriage cert to confirm.
In 1871 census, Ellen Middleton, 17, b. Rainton, is a Domestic Servant in Framwellgate, Durham.
You have Ellen in 1881 and 1891.
1901 census, Smiths Place, Sherburn, Durham,
Richardson Cardwell, Wid, 49, Coal Hewer, b. Ireland,
Joseph Cardwell, son, 15, Water Leader Farm, b. Sherburn,
Bella Cardwell, dau, 14, b. Sherburn,
Sarah A. Cardwell, dau, 9, b. Sherburn,
Ellen Thompson, Servant, wid, 48, Housekeeper Domestic, b. W. Rainton,
RG13/4684/109/24
A marriage Lanchester 1903, Ellen Thompson and Richard Cardwell. Durham Registrars site has Ellen Thompsons fathers surname as Middleton. Search for them in 1911.
Alan.