"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X79G-4FB : accessed 2 October 2017), Richard J Drouillard in household of Calixte Drouillard, Detroit (Districts 0251-0500), Wayne, Michigan, United States; citing enumeration district (ED) ED 416, sheet 3A, line 34, family 10, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1048; FHL microfilm 2,340,783.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JPTJ-76F : 20 May 2014), Richard Drouillard, Feb 1986; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
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DNA Connections
It may be possible to confirm family relationships with Richard 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 Richard: