"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMDB-Q4B : accessed 7 September 2018), Cora Engle in household of Alvin Engle, Medina & Montville Townships Medina village, Medina, Ohio, United States; citing enumeration district (ED) 49, sheet 18A, family 479, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,302.
"California Death Index, 1940-1997," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VGR3-MN4 : 26 November 2014), Clark in entry for Walter Horace Engle, 31 Dec 1955; Department of Public Health Services, Sacramento.