"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MNSL-144 : 14 July 2016), Hyrum Anderson in household of John Anderson, Lehi, Utah, Utah, United States; citing enumeration district ED 87, sheet 263C, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 1338; FHL microfilm 1,255,338.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMRR-B4D : 22 January 2015), Hyrum Andreason, Lehi Precinct Lehi city Ward 1-3, Utah, Utah, United States; citing sheet 6B, family 127, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,241,687.
"Utah, Obituaries from Utah Newspapers, 1850-2005," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVSF-K12X : 8 October 2015), Hyrum Andreason, 01 Mar 1906; citing Lehi Banner and Lehi Sun, The University of Utah. J. Willard Marriott Library, Salt Lake City.