Hi
Yes, that's the right family.
I have, census wise:
The 1851 census finds the family living in East Murton, Durham, were John was employed as an agricultural labourer on ‘Murton Fields.’
Another daughter, Dorothy, was born in Easington around 1852, Christiana, born during the June quarter of 1853, John, born in Kelloe, during the June quarter of 1855, and George, born during the June quarter of 1859.
By 1861, the family had relocated to Quarrington Wood Houses, Quarrington Hill, Quarrington, Durham, where John was now working as a ‘horsekeeper’, possibly at the colliery, alongside his eldest son, Robert, who was a coal miner.
A son, David, was born during the December quarter of 1865; his birth appeared to complete the family.
The 1871 census finds the family now residing in Wingate Colliery. John was now employed as a labourer, and with them on census night were their recently wed son, Robert, his wife, Isabella, and their son, John, who was a year old.
Sons, John and George, who was only 12 years of age, were both employed as coal miners. Daughters, Dorothy and Christiana are both missing from the household. Dorothy may have died, as she cannot be found on the census, however, Christiana was employed as a servant in the ‘Vicarage’ in Ellingham Village, employed by the local vicar, Charles Thorp.
Another ‘grandchild’, Elizabeth Rose Cornforth, was also staying on census night. She had been born in Marton, Yorkshire around 1870, so may have been transcribed incorrectly as none of John and Mary’s children appear to have returned to their father’s birthplace.
This theory is strengthened by the fact that she remained with John and Mary, but by 1881 she is listed as a ‘niece’, which was almost certainly correct.
By this time the couple had relocated once more to Wood Row, Twizell, near Edmondsley.
John, who was now 60 years of age, was employed as a coal miner, alongside sons, John, George and David.The 1891 census finds John and Mary residing in Dykes Cottage, Twizell; aged 70 years, John was still employed as a colliery labourer, alongside son, John.
Mary died during the March quarter of 1893; she was 65 years of age. This would put her year of birth as 1828.
John died during the December quarter of 1900; he was 77 years of age.
Hope this helps - no sign of Jemima though!
Sue