↑ "United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J1DV-QPK : 9 January 2021), Louis Leduc, 30 Jul 1999; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
↑ Find a Grave, database and images (https://www.findagrave.com/memorial/70595742/louis-c-leduc : accessed 9 April 2022), memorial page for Louis C “Louie” LeDuc (12 May 1911–30 Jul 1999), Find A Grave: Memorial #70595742, citing Mound Cemetery, Pana, Christian County, Illinois, USA ; Maintained by (Helen) Jean Kennedy (contributor 47365601) .
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:XSRN-GPZ : accessed 9 April 2022), Louis Leduce in household of Ceaser Leduce, Pana, Christian, Illinois, United States; citing enumeration district (ED) ED 20, sheet 8B, line 72, family 197, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 411; FHL microfilm 2,340,146.
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