"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MVWS-FQD : accessed 30 September 2018), Theogene Pitre, Police Jury Ward 1, St Landry, Louisiana, United States; citing ED 84, sheet 17A, line 1, family 286, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 630; FHL microfilm 1,820,630.
"United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:VY5X-RG2 : 4 January 2021), Theodore Pitre, Ward One, St. Landry, Louisiana, United States; citing enumeration district (ED) 49-10, sheet 22A, line 9, family 348, 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 1451.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J59P-8Y8 : 10 January 2021), Theodore Pitre, Feb 1989; 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 : accessed 30 January 2021), memorial page for Theodore Pitre (16 Jan 1905–23 Feb 1989), Find a Grave Memorial no. 183872741, citing Sacred Heart Prairie Ronde Cemetery, Prairie Ronde, St. Landry Parish, Louisiana, USA ; Maintained by Angie Martin (contributor 47902907) .