Rain,
Looked at Surname Index for Census 1851 for Hexham area.
There were only two HANKINs in whole area.
At 2414-586 was 13 yr old William
At 2414-605 was 14 yr old Ann.
As theses two were individually on separate Folios, it indicates that they were each in households where there were the only HANKIN in that household.
Unfortunately I did not have access to the proper census pages, so could not see what their status was in "their" households... e.g. grandchildren, step-children or whatever.
At 2414-400 there was a HARKIN family
William 38, Ellen 30, Patrick 4 and Hugh 2.
But in the Hexham census district there were no other "near-things" to a FRANCIS HANKIN. !
Michael Dixon,
Blyth, Northumberland