I looked into my family's ancestry, and found not one, but TWO convicts ! That was going back to the early 1800s, when I had 64 ancestors.
And my grandfather's grandfather (all on the male line) lived to 100.
I recall reading years ago about how many English people have some North African ancestry, and I always though it was because a number of slaves were brought back to Britain. Anyone know if there were many ? If not, I guess the generations just multiplied the number of people.