Curtiss, Frederic Haines, 1903. A Genealogy of the Curtiss Family, being a Record of the Descendants of Widow Elizabeth Curtiss, who settled in Stratford, Conn., 1639-40. Rockwell & Churchill Press, Boston, page 75
It may be possible to confirm family relationships with Annis 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 Annis: