"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M4B8-MFX : 12 April 2016), Rachel Hinkle in household of Isaac Hinkle, Lincoln county, Lincoln, North Carolina, United States; citing family 583, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
"North Carolina Deaths, 1906-1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:F3DR-362 : 3 May 2019), Rachael Johnston, 23 Jan 1930; citing Charlotte, Mecklenburg, North Carolina, reference cn 303, State Department of Archives and History, Raleigh; FHL microfilm 1,943,013.
It may be possible to confirm family relationships with Rachel 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 Rachel: