Hi Maureen,
In 1851 George & Rachel were living in Canongate, Alnwick, not Harlow Hill, that's where George was born, and Rachel born Barnard Castle. Harlow Hill is in Northumberland, near Prudhoe. I've just found them in 1841, still in Canongate :
1841 census HO107/828/5 fol.11 p.14 Canongate, Alnwick, Northumberland
George Robinson 60 Miller Y (born in county)
Rachel " 60 N (not born in county)
Will now look for George jnr. to see if he was in Wingate in 1841 - as he wasn't with George & Rachel.
Barbara