Thanks Gadget!
The census details are consistant with an approx date of 1812 and all state Ovingham as William's birthplace ..
1871 census:RG10/5065, Folio 63, Page 7
Durham, Winlaton
William Bullock, h. mar, 59, Provision Dealer, b. Northumberland, Ovingham
Jane, wife, 59, Northumberland, Bywell
Septimus, son, unm, 24, Blacksmith, b. Durham, Ryton
Margaret Grundy, niece, unm, 19, Visitor, b. Durham, Ryton
Pels
