Those of Cor Green on the 1871 census on Ancestry are on the 1861 census on FindMyPast
Crown Road, Southwick, Sunderland, Durham
Richard Harker Head Married Male 35 1826 Shipwright West Herrington, Durham, England
Jane Harker Wife Married Female 31 1830 - Coxgreen, Durham, England
3 children
Quarry Lane, Ford, Sunderland, Durham
William Kirtley Head Married Male 31 1830 Joiner South Hylton, Durham, England
Mary J Kirtley Wife Married Female 27 1834 - Coxgreen, Durham, England
3 children
David