"GILBERT, JOHN (1760- ) A CCC employee promoted from Copperhouse to a post at the Rolling Mills at St Erth; member of the first Copperhouse Methodist Society and the founder in 1783 of the St Erth Methodist Class."from "The History of the Cornish Copper Company" by W.H.Pascoe
burial records, parish transcript for marriage, christening records for children, "The History of the Cornish Copper Company" by W.H.Pascoe
It may be possible to confirm family relationships with John 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 John: