↑ "United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J5XM-82D : 20 May 2014), Thomas E Ennis, 18 Apr 1995; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K73Q-QXM : accessed 14 January 2018), Thomas E Ennis in household of James E Ennis, Tract 94, District of Columbia, Police Precinct 12, District of Columbia, District of Columbia, United States; citing enumeration district (ED) 1-479, sheet 61A, line 32, family 66, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 569.
Find A Grave: Memorial #8770955 retrieved 14 January 2018 Photo of gravestone for M GY SGT Thomas E Ennis in Arlington National Cemetery, Arlington, Arlington County, Virginia, USA. Section 64, Site 1292.
It may be possible to confirm family relationships with Thomas 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 DNA with Thomas: