"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2D4-ZXW : accessed 30 July 2017), Renno Allen in household of Thomas W Allen, Driskill, Hardin, Kentucky, United States; citing enumeration district (ED) ED 50, sheet 10B, family 199, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 477; FHL microfilm 1,374,490.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MJHR-S34 : accessed 30 July 2017), Reno E Allen in household of William T Allen, Waverly, Morgan, Illinois, United States; citing ED 109, sheet 8A, line 20, family 175, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 395; FHL microfilm 1,820,395.