The revised purpose and scope of this Mitochondrial DNA (mtDNA) Project is to develop a genetic “mtDNA signature” for Dorcas (—) Andrews based on mtDNA test results from her umbilical descendants. By comparing mtDNA from known umbilical descendants of Dorcas with mtDNA from her probable or possible umbilical descendants, we can confirm or refute theoretical or ambiguous lines of descent that have been developed through conventional genealogical research using indirect evidence. Note that Dorcas (—) Andrews, wife of James-2 Andrews (Samuel-1), is frequently—but incorrectly—identified as a daughter of Michael-1 and Elizabeth (Cleeve*) Mitton. It was actually Sarah-2 Mitton (Michael-1) who married James-3 Andrews (James-2, Samuel-1); for more information, please visit the project website. *The project also remains known as "Cleeve-mtDNA" within Family Tree DNA.