He died in France in 1945, during WWII. His death was not battle-related.
↑ "United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MLPG-9NC : accessed 21 September 2015), H S Bargy, Melrose, Charlevoix, Michigan, United States; citing enumeration district (ED) 22, sheet 10A, family 176, NARA microfilm publication T624 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,374,654.
↑ World War II Honor List of Dead and Missing Army and Army Air Forces Personnel from Michigan, 1946
It may be possible to confirm family relationships with Leo 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 Leo: