It may be possible to confirm family relationships by comparing test results with Gale or other carriers of her ancestors' mitochondrial DNA.
Mitochondrial DNA test-takers in the direct maternal line:
Family Tree DNA mtDNA Test Full Sequence, haplogroup J2a1a1a, FTDNA kit #B415716
It is likely that these autosomal DNA test-takers will share DNA with Gale:
Family Tree DNA Family Finder , GEDmatch KL9380034[compare], yourDNAportal SANd1a4bc0e, FTDNA kit #B415716