Find A Grave, database and images (https://www.findagrave.com: accessed 22 January 2018), memorial page for Loretta G. Ennis Grady (20 Jul 1908–25 Oct 1975), Find A Grave: Memorial #43062224, citing Mountain View Cemetery, Pocatello, Bannock County, Idaho, USA ; Maintained by Bill E. Doman (contributor 46794701) .
"United States Social Security Death Index," database, FamilySearch(https://familysearch.org/ark:/61903/1:1:JT7B-DM6 : 20 May 2014), Loretta Grady, Oct 1975; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"United States Census, 1910," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MLHF-KJ7 : accessed 22 January 2018), Loretta Ennis in household of John Ennis, Pocatello Ward 2, Bannock, Idaho, United States; citing enumeration district (ED) ED 35, sheet 33B, family 477, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 221; FHL microfilm 1,374,234.
"United States Census, 1940," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:VY4D-QJB : accessed 22 January 2018), Loretta Grady in household of Maurice Grady, Pocatello Election Precinct 1, Bannock, Idaho, United States; citing enumeration district (ED) 3-23, sheet 2A, line 4, family 21, 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 737.
It may be possible to confirm family relationships with Loretta by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Loretta: