Autosomal DNA: Close relationship. grandchild F. Lewis is a close match (182 cM) on GEDmatch with a second cousin once removed through Ida Adelia's brother Lafayette Washington, and F. Lewis' daughter is an even closer match at 23andMe with that person's father (196 cM).
Autosomal DNA: Triangulation. Three of four grandparents for Ida Adelia Langwell have been triangulated using F. Lewis's data and matches at GEDmatch and FTDNA.
It may be possible to confirm family relationships with Ida by comparing test results with other carriers of her mitochondrial DNA.
Mitochondrial DNA test-takers in the direct maternal line:
F Lewis :
Mitochondrial DNA Test Other, haplogroup H1
It is likely that these autosomal DNA test-takers will share DNA with Ida: