Lela Belle (Yates) Westmoreland lived in Louisiana.
The 1940 Census has 'Leta' Belle (name misspelled) and in college (first year).
Juanita Gayer wrote about Lela Belle:
The only one [of Charlie's children] I knew was Lela Belle, some years younger than me. She joined the WAVES during the War and was stationed in DC. She learned to fly, and soloed, was a reporter for the Waves, and she acted with the Washington Little Theater. (This may not be the name of the Group).... She so impressed the director of the Washington Group that she wanted to take Lela Belle with her to New York, but Lela wrote me that she decided against it: "I'm too much like my father -- I don't think I could handle the responsibility." Rather sad. She was a tall blonde girl, not really pretty in the ordinary sense but with a haunting quality and a great deal of grace. She returned to marry her high school sweetheart. 
Her headstone indicates she was "SPI, US Navy" which means "Specialist, Punch Card Accounting Machine Officer
↑ 1.01.1 Year: 1940; Census Place: Washington, Louisiana; Roll: T627_1463; Page: 7B; Enumeration District: 59-1 Description: POLICE JURY WARD 1Ancestry.com. 1940 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2012. Original data: United States of America, Bureau of the Census. Sixteenth Census of the United States, 1940. Washington, D.C.: National Archives and Records Administration, 1940. T627, 4,643 rolls.
↑ 2.02.1 Notes by family historian Juanita Gayer, given to Boone Yates Richardson, and uploaded here.
↑ Year: 1930; Census Place: Police Jury Ward 1, Washington, Louisiana; Roll: 824; Page: 2A; Enumeration District: 0001; Image: 592.0; FHL microfilm: 2340559 Enumeration District : 0001; Description: POLICE JURY WARD 1 Source Information Ancestry.com. 1930 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2002. Original data: United States of America, Bureau of the Census. Fifteenth Census of the United States, 1930. Washington, D.C.: National Archives and Records Administration, 1930. T626, 2,667 rolls.
↑ "United States Public Records, 1970-2009," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QJWP-63C3 : 23 May 2014), Lela B D Westmorelan, Residence, Franklinton, Louisiana, United States; a third party aggregator of publicly available information.
↑ "United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:V3H1-N3G : 20 May 2014), Lela Y Westmoreland, 08 Sep 1994; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
It may be possible to confirm family relationships with Lela Belle by comparing test results with other carriers of her ancestors' 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 Lela Belle: