"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M3P2-KPT : accessed 30 March 2020), J W Grayson in household of J B Grayson, Justice Precincts 4-5 Regency village, Mills, Texas, United States; citing enumeration district (ED) 114, sheet 2A, family 19, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,659.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M233-FHY : accessed 30 March 2020), John W Grayson in household of Joseph B Grayson, Justice Precinct 5, Mills, Texas, United States; citing enumeration district (ED) ED 210, sheet 9A, family 113, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1578; FHL microfilm 1,375,591.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCMJ-C3V : accessed 30 March 2020), John Grayson in household of Maggie Grayson, Justice Precinct 6, Mills, Texas, United States; citing ED 173, sheet 6B, line 67, family 100, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1834; FHL microfilm 1,821,834.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:CWZW-GZM : accessed 30 March 2020), John W Grayson, Gustine, Comanche, Texas, United States; citing enumeration district (ED) ED 5, sheet 4A, line 36, family 103, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2311; FHL microfilm 2,342,045.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K4S8-XC3 : 22 December 2019), John W Grayson, Justice Precinct 2, Mills, Texas, United States; citing enumeration district (ED) 167-3, sheet 4A, line 39, family 71, 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 4107.
"Texas Deaths, 1890-1976," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K38L-BHQ : 13 March 2018), John W Grayson, 07 Jan 1976; citing certificate number 00015, State Registrar Office, Austin; FHL microfilm 2,243,842.