Profile last modified 6 Dec 2018
| Created 18 Oct 2012
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Isaac Sinclair, grandson of Alexander, married Letitia Douglas, daughter of Joseph Douglas, descendant of the Douglases of Mains, whose ancestor emigrated to Maryland from Glasgow in the tobacco trade. This seems like an important marriage. In Scotland, in 1653, Robert Sinclair married Barbara Douglas in Haddington Parrish. There were other "recent" Sinclair/Douglas marriages. A ROBERT DOUGLAS married a MARION ST. CLAIR in 1699 in Haddington Parrish outside Stevenson. 
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It may be possible to confirm family relationships with Isaac 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 Isaac: