Robsons in Tynedale are like Smiths. However if you consult the Victoria County History of Northumberland Vol VI, in the account of Slaley, the Carrs go back to the Queen Elizabeth's 1570 survey of lands confiscated from the Earl of Westmorland, as tenants at will then as freeholders, growing more numerous with the increasing population. They don't appear in the 1538 Muster roll however, so may have replaced a casualty of the 1543 raid.
Robsons don't appear until the voters roll of 1774 when Thomas and John voted. As freeholders they would be the social equals of the Carrs. Possibly they were Ninebanks Robsons?
Good luck, Peter