Information came from: Corine Smith Miller of Walhalla, South Carolina; and Lucille Smith Gentry Lee O'Brian Beasley of Homestead, Florida.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K7GT-3TJ : accessed 7 August 2015), John Henry Smith in household of Lester Smith, Militia District 205, Madison, Georgia, United States; citing enumeration district (ED) 97-7, sheet 8A, family 121, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 693.
WikiTree profile Smith-27376 created through the import of Martin_Cleaned.ged on Apr 3, 2012 by Donna Drury. See the Changes page for the details of edits by Donna and others.
It may be possible to confirm family relationships with John by comparing test results with other carriers of his ancestors' Y-chromosome or 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 DNA with John: