I've identified this James Maupin as the same on that is in the 1850 census below. Several James Maupin in Tennessee, but can be eliminated. Wrong wives, and moved to Illinois.
Biography
James was born about 1826.
Sources
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCD7-3H3 : 12 April 2016), James Maupin in household of William Traxler, Bedford county, Bedford, Tennessee, United States; citing family 148, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDQK-5NH : 15 July 2017), James Maupin, District 2, Bedford, Tennessee, United States; citing enumeration district ED 2, sheet 132C, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 1244; FHL microfilm 1,255,244.
Is James your ancestor? Please don't go away! Login to collaborate or comment, or contact
the profile manager, or ask our community of genealogists a question.
Sponsored Search by Ancestry.com
DNA Connections
It may be possible to confirm family relationships with James 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 some percentage of DNA with James: