DNA testing

DNA testing for the Blennerhassett problem

The "Holy Grail" of my family tree was the Blennerhassett problem, the problem of figuring out how the Cashel family (our family) descends from the Blennerhassett family.

After years of gathering paper evidence, I turned to DNA.
In 2020, DNA finally proved we are descended from the Blennerhassett Baronets branch.

DNA testing for the Blennerhassett problem

Other DNA testing

I have looked at DNA in other (non-Blennerhassett) branches of my family tree, and in my wife's family tree.

This clarified many existing lines and proved many new lines. As a result, a large number of lines in the tree are now DNA proven.

Donation Drive

Please donate to support this site. I have spent a great deal of time and money on this research. Research involves travel and many expenses. Some research "things to do" are not done for years, because I do not have the money to do them.
Please Donate Here to support the ongoing research and to keep this website free.