only one on DRO is the same:
Ralph Kirtley, of Low Barnes
Bishopwearmouth
Church: St. Michael's
23 Aug 1795, son of Ralph Kirtley & Mary
1851c: Bishopwearmouth
High Ford Farm,Ford (HO107/2395/folio 60)
Ralph Kirtley, Head, 54, Farmer 126 acres, born Bishopwearmouth, County Durham
Henry Ferry, Nephew, 19, Agricultural Labourer, born Bishopwearmouth, County Durham
Margaret Robinson, Female Servant, 21, Dairymaid, born Allendale, Northumberland
there is another Ralph Kirtley 1851c but he is a pilot so assume this one yours.
burial of this Ralph:
Location: Bishopwearmouth
Church: Bishopwearmouth Cemetery
31 Dec 1861 Ralph Kirtley, of Ford, age: 67, Farmer
Diddy