"Virginia, Bureau of Vital Statistics, County Marriage Registers, 1853-1935," database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:8L44-N23Z : 6 August 2020), Louisa Young in entry for Peter Catron, 25 Apr 1857; citing Marriage Registration, Smyth, Virginia, United States, Virginia State Library and Archives, Richmond.
"Tennessee Deaths, 1914-1966," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:NSD8-DT9 : 13 September 2018), Louise Young in entry for Mary Elizabeth Clear, 14 Apr 1939; Death, Kingsport, Sullivan, Tennessee, United States, Tennessee State...
"Family Tree," database, FamilySearch (http://familysearch.org : modified 18 March 2017, 02:30), entry for Louisa Young(PID