Born to Jefferson and Martha Brown-Ferrand in Kentucky 1850.
I think this might be her parents: Thomas J. (Jefferson?)  and Martha  they are buried in the cemetery in Indiana where Ardra, his wife and kids are also buried...
"Illinois Deaths and Stillbirths, 1916-1947,"
Name Serilda Jane Sadler
Event Date 19 Apr 1923
Event Place Saint Joseph, Champaign, Illinois
Birth Year (Estimated) 1851
Birth Date 16 Aug 1850
Father's Name Jefferson Ferrand
Father's Birthplace KY
Mother's Name Martha Brown
Mother's Birthplace KY
Residence Place St. Joseph, Champaign, IL
Spouse's Name Joseph N. Sadler
Burial Date 21 Apr 1923
Burial Place Homer, IL
Cemetery Homer G.A.R.
Citing this Record
"Illinois Deaths and Stillbirths, 1916-1947," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NQV3-F57 : 27 December 2014), Joseph N. Sadler in entry for Serilda Jane Sadler, 19 Apr 1923; Public Board of Health, Archives, Springfield; FHL microfilm 1,557,113. 
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It may be possible to confirm family relationships with Jane 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 some percentage of DNA with Jane: