Hannah Clark
born 13 November 1858
  in Shincliffe, Co. Durham
died 9 May 1888
  in Edmondsley, Co. Durham

Margaret Cozens has seen birth certificate, and adds that Hannah was baptised at St Mary the Virgin, Shincliffe.

1861 census: living with parents and siblings on Newcastle Row, Framwellgate Moor. Aged 2, born in Shincliffe.

1871 census: living with parents and siblings on Middle Row, Broadmyers. Aged 12, born in Shincliffe.

1875: I have a copy of her marriage certificate, where she is described as 19 [actually 16], living at Nettlesworth.

1875: Still in Nettlesworth at time of daughter Hannah's baptism.

1881 census: aged 22, living with parents and daughter, Hannah, at 27 Swan St, Elvet, Durham. (I've only seen LDS record—PRO ref is: RG11, Piece 4955, Folio 76, Page 2.)

Margaret Cozens: died 'the 9th May 1888 at Edmondsley, 29yrs old. Cause of Death was Phthisis Pulmonalis [turberculosis]. She was buried from the barracks Edmondsley on the 13th May 1888.'

Audrey Thorogood says that the Barracks was also known as the Shamrock Yard. It had been a barracks, but when the army moved out squatters moved in.