Cornelius was born in 1913. He passed away in 2000.
Sources
"Kentucky, Vital Record Indexes, 1911-1999," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKHV-14WB : 11 February 2018), Cornelius G Gaither, 11 Feb 1913; citing Birth, Mason, Kentucky, United States, Kentucky Department for Libraries and Archives, Frankfort.
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:XMF9-MDY : accessed 22 December 2022), C Gordon Gaither in household of John C Gaither, District 07, Mason, Kentucky, United States; citing enumeration district (ED) ED 18, sheet 6B, line 51, family 139, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 766; FHL microfilm 2,340,501.
"United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:K7RG-L3F : 9 January 2021), C Gordon Gaither in household of Eva Leach, Magisterial District 1, Fayette, Kentucky, United States; citing enumeration district (ED) 34-36, sheet 13B, line 42, family 266, 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 1303.
"Kentucky, County Marriages, 1797-1954," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2DW-5X72 : 22 July 2021), Cornelius Gordon Gaither and Margaret Louise Riggins, 1 Jun 1946; citing Marriage, Louisville, Jefferson, Kentucky, United States, various county clerks and county courts, Kentucky; FHL microfilm 1,690,411.
"United States, GenealogyBank Historical Newspaper Obituaries, 1815-2011", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Q5Q1-M8D3 : 18 July 2020), C Gordon Gaither in entry for Mrs Frona Williams Gaither, 1978.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JLWN-DTY : 9 January 2021), C Gordon Gaither, 28 Nov 2000; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).