It may be possible to confirm family relationships with Esther by comparing test results with other carriers of her ancestors' 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 DNA with Esther:
Varney-785 and Varney-60 appear to represent the same person because: same birth year; same parents (recently merged duplicates) and siblings (currently proposing merges for duplicates). FamilySearch profile: https://www.familysearch.org/tree/person/K2S7-MF9/details (may be a conflated profile of Easter and Esther; or Easter and Esther may be the same person)