It may be possible to confirm family relationships by comparing test results with Jade or other carriers of her ancestors' mitochondrial DNA.
Mitochondrial DNA test-takers in the direct maternal line:
Jade (Schmitt) Wanger:
Family Tree DNA mtDNA Test Full Sequence, haplogroup H-G16129A, FTDNA kit #B11235
It is likely that these autosomal DNA test-takers will share DNA with Jade: