My mtDNA over the past 250 years

Back in 2008, the genetic genealogist Blaine Bettinger wrote an interesting and educational post, “Where Was My Y-DNA in 1808?” Today, in the same spirit of curiosity and wonder, I created this map, tracing how my mitochondrial DNA–the very DNA in every cell of my body–was also in the cells of so many maternal ancestors….

Gramma, or Harriett “Bee” Jones Barr Grove Johnston Hamilton

The woman I knew throughout my childhood as Gramma Harriet was my mother’s stepmother. Mom’s parents had divorced when she was a teenager, and her dad, my Poppy, had married Harriet a month before I came into the world. By the time I was a couple years old, I could already feel the frostiness between…