| Sources |
- [S1655689317] Ancestry.com, U.S., School Yearbooks, 1900-1999, (Ancestry.com Operations, Inc.), "U.S., School Yearbooks, 1880-2012"; School Name: Columbus East High School; Year: 1973.
- [S1640033450] Ancestry.com, U.S., Find A Grave Index, 1600s-Current, (Ancestry.com Operations, Inc.).
- [S1640068719] Ancestry.com, Indiana, Death Certificates, 1899-2011, (Ancestry.com Operations, Inc.), Indiana Archives and Records Administration; Indianapolis, IN, USA; Death Certificates; Year: 2011; Roll: 32.
- [S1640163597] Ancestry.com, Indiana, Marriage Certificates, 1960-2005, (Ancestry.com Operations, Inc.).
- [S1640033586] Ancestry.com, Newspapers.com Obituary Index, 1800s-current, (Ancestry.com Operations Inc), The Republic; Publication Date: 25 Oct 2011; Publication Place: Columbus, Indiana, USA; URL: https://www.newspapers.com/image/149263325/?article=ab0956a8-7b7a-4cda-b15c-bc03f55546ec&focus=0.3253058,0.24415365,0.47493637,0.43431348&xid=3355.
- [S1666588494] Newspapers.com - The Republic - 25 Oct 2011 - Page 9, (The Republic), Obituary for Jeffrey E Mankin (Aged 55) 25 Oct 2011.
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