The Germanna Record, No. 13 - The Blankenbaker, Weaver, and Wilhoit Families, The Memorial Foundation of the Germanna Colonies, Inc., Publishers, 2006
Wilhite/Wilhoit & Allied Descendants of Johann Michael and Anna Maria (Hengsteler) Wilheit 1671-1994 Compiled by Mary F. Mickey
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDZJ-4YF : 12 April 2016), Emily Johnson in household of Merrit Johnson, Weston, Platte, Missouri, United States; citing family 92, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
"Kentucky, County Marriages, 1797-1954," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKJS-XY9T : accessed 1 May 2018), Merit Johnson and Emily Wilhite, 11 Jan 1832; citing Woodford, Kentucky, United States, Madison County Courthouse, Richmond; FHL microfilm 252,326.
It may be possible to confirm family relationships with Emily 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 Emily: