My great-grandmother Della Ann Archer (Mills) died when I was a child, at the age of 94.
She was born on 20 November 1894 in Piney Flats, Tennessee to James P Mills and Mary O. (Hodges). Some older sources refer to her as “Ida Della Mills” but she is clearly identified as “Della A.” in the 1900 Census. She married my great-grandfather Robert Taylor Archer, Sr. on 18 September 1915 in Washington County, Tennessee.
Her obituary from the Kingsport Times-News is reproduced below. Note that Robert T. Archer died in 1968, not in 1972 as is erroneously stated here.
She is buried alongside my great-grandfather in Oak Hill Cemetery in Kingsport.
Della Ann Archer
Della Ann Archer, 94, formerly of 923 Elizabeth St., died at 10:45 p.m. Monday (March 6, 1989) at Anderson Health Care Center, Gray, after a long illness.
Born in Piney Flats, she had lived in Kingsport since 1919 and was a member of Community United Methodist Church. She was also a Missions Outreach Shut-In of Stateline Baptist Church.
She was preceded in death by her husband, Robert T. Archer, Sr., 1972; a daughter, Geraldine (Jerry) Archer, 1976; two sons, Harry P. Archer, 1979 and Hunter A. Archer, 1972.
Surviving are two daughters, Ms. Betty Brewer and Mrs. (Emma Lee) Jack Gardener, both of Kingsport; four sons, Robert T. Archer, Jr., Daniel W. Archer, Aaron A. Archer, all of Kingsport and B.F. Archer, Corbin, Ky.; 14 grandchildren; several great-grandchildren; several nieces and nephews.
Calling hours are from 6 to 8 p.m. Wednesday at Oak Hill Funeral Home where services will be conducted at 8:15 p.m. with Dr. Tony Gonzalez and the Rev. Mark Stayton officiating.
Graveside services will be conducted at 11 a.m. Thursday at Oak Hill Cemetery.
 Ancestry.com. U.S., Social Security Death Index, 1935-2014 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2011. Original data: Social Security Administration. Social Security Death Index, Master File. Social Security Administration. Number: 411-27-9920; Issue State: Tennessee; Issue Date: 1977.
This is also confirmed by her death certificate, referenced elsewhere.
 Ancestry.com. 1900 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2004.Year: 1900; Census Place: Civil District 20, Sullivan, Tennessee; Roll: 1601; Page: 4B; Enumeration District: 0124; FHL microfilm: 1241601.
See also death certificate but notice mistaken last names.
Mary’s maiden name is known by family tradition.
 See here.
 See note 2.
 Familysearch.org, Tennessee Marriages, 1796-1950. “Tennessee, Marriages, 1796-1950,” index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XD9W-BYX : accessed 17 Aug 2014), Robert Archer and Dellie Mills, 18 Sep 1915; citing , Washington, Tennessee, reference 2:2BLVNLC; FHL microfilm 825508.
This is confirmed by the 1 Oct 1965 edition of the Kingsport Times, which ran a story about their “recent” 50th anniversary. “Archers Celebrate Golden Anniversary”, Kingsport Times, 1 Oct 1965, p. 7.
 Obituary, Kingsport Times-News, 8 March 1989, p. 4B.
 See here.
 Findagrave.com. The site notes that they are buried in the Everlasting Life section of the cemetery.