"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JGNL-3M3 : 19 May 2014), Henry P Runkles, 21 Aug 2006; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"United States, GenealogyBank Obituaries, 1980-2014," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKG2-5Y71 : 26 October 2016), Henry P Runkles, Westminster, Maryland, United States, 03 Sep 2006; from "Recent Newspaper Obituaries (1977 - Today)," database, GenealogyBank.com (http://www.genealogybank.com : 2014); citing Carroll County Times, born-digital text.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K7FH-RYD : accessed 2 December 2016), Henry P Runkles in household of Marion V Runkles, Mount Airy, Election District 18, Frederick, Maryland, United States; citing enumeration district (ED) 11-48, sheet 2A, line 21, family 33, 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 1549.