My wife, my mother, and I did our 23andme tests several years ago. It was interesting that I am pretty much 99% English / Irish Northern European mixture (plain Vanilla). However, I did have .1% sub Saharan African, which is interesting and very cool. My mother tested same as I except her percentage of sub Saharan African was .2%. This cracked me up since I would have sworn it would have come from my father's side of family. He was from the south and my mom's side is out of Minnesota. However, with percentages so tiny, these ancestors were probably from the time of Revolutionary America.
Mike, congrats on your distinguished and famous ancestry. I still remember watching the original Roots in first run and how the world came to a stand still to watch it that week. Good times, then. Today, the reboot sort of gets lost in the 500 channels of overwhelming content, not the 4 networks I grew up with.