It may be possible to confirm family relationships with Lavinia 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 Lavinia:
Paul Skiles :
23andMe, GEDmatch M136606 [compare] +
AncestryDNA, GEDmatch A045618 [compare], Ancestry member skiles_p +
Autosomal DNA Test, GEDmatch Z759197 [compare]