Family Bible of Mattie David Carne, granddaughter of Nancy Barnard Carne on the internet under "Family Bibles Mattie D. Carne." unpublished letters between daughters of Luke Barnard; "Tracking the Elusive Luke Barnard" by John M. Dillard, 2012
It may be possible to confirm family relationships with Marguerite by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Marguerite: