There are two George Benson's married within 10 months of each other in Grates Cove (see George Benson), both on the same records sheet. I've tried my best to determine who was who, but there are a number of contradictory accounts of the family, and different trees assign them differently.
To add to the general confusion, there are two children, born to a George and Mary Benson, born in the two years before their marriage was recorded. It's possible this was not unheard of, when preachers were rare? A premarriage "marriage" might explain why her maiden name was recorded as Benson. Otherwise, she may have been a cousin.
↑ "Newfoundland, Vital Statistics, 1753-1893," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QK9T-PLJ7 : accessed 21 August 2015), George Benson and Mary Benson, 30 Oct 1830; citing Marriage, Grates Cove, Bay de Verde, Newfoundland, Canada, Provincial Archives, St. John's.
It may be possible to confirm family relationships with George by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with George: