"United States Census, 1880," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MFNG-WVZ : 15 January 2022), James N. Jones, Justice Precinct 1, Jack, Texas, United States; citing enumeration district , sheet , NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm .
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2SS-H63 : accessed 13 August 2022), James N Jonas, Justice Precinct 1, Jack, Texas, United States; citing enumeration district (ED) ED 141, sheet 18B, family 262, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1567; FHL microfilm 1,375,580.
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:C98Q-7W2 : accessed 13 August 2022), J N Jonas, Precinct 1, Jack, Texas, United States; citing enumeration district (ED) ED 3, sheet 1B, line 83, family 18, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2360; FHL microfilm 2,342,094.
"Texas Deaths, 1890-1976," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K33C-W2W : 20 February 2021), Jas Newton Jonas, 29 Feb 1932; citing certificate number 7523, State Registrar Office, Austin; FHL microfilm 2,135,794.