I just didn't think autosomal mtDNA matches past certain points. I know they look for HVR1 Mutations and HVR2 Mutations to match as well as the Halo type. What is interesting, the ancestors they list are always related to me. It's fascinating. I wasn't aware of Sir Edmund Cornwall until the FTDNA project match.
Sir Edmund Cornwall, Kt. of Burford is my 18th great-grandfather. I also had FTDNA test done. A more experienced DNA expert than I am matched my test to Plantagenet,as I am also Descended from King John Plantagenet.I wrote a book on this family in 1974. My older ancestors in Georgia and North and South Carolina had worked on this family for many years, and passed all of this information down to me, for my book, in 1974. They belonged to organizations of Americans of Royal Descent, Colonial Dames, Daughters of the American Revolution. and others. They had to proved their lineage. My DAR ancestor is Elijah Cornwell. Cornwell and Cornwall are the same family as recorded in a newspaper article written in 1932 by Arthur Cornwall.
In 1974, I interviewed my 83 year old great-aunt, who passed all of this information to me.
Dona Lorine(Floyd) Kimmons