"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M8GZ-4PQ : 22 August 2017), Mary Willson in household of Stanly Willson, Smiths, Johnson, Georgia, United States; citing enumeration district ED 61, sheet 353A, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0154; FHL microfilm 1,254,154.
Find A Grave, database and images (https://www.findagrave.com : accessed 19 April 2018), memorial page for Mary Townsend Wilson (30 Nov 1848–12 Dec 1886), Find A Grave Memorial no. 83599210, citing Providence-Pullen Cemetery, Meeks, Johnson County, Georgia, USA ; Maintained by Kay W. Waters (contributor 46890871) .
It may be possible to confirm family relationships with Mary 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 Mary: