Of all the humans tested so far, everyone has contained the same DNA from 1 of at least 2 ancestors. Mitochondrial DNA being traced back matrilineally to a specific “mT-Eve,” and a Y-chromosome being traced back patrilineally to a specific “Y-chromosomal Adam.” We are not descended from a singular couple, but rather we are all seemingly descended from singular ancestors that may have lived hundreds of thousands of years apart.
Consider the situation in which a woman hoping to gain material about an ancestor’s residence rented a motel out of state in the area of ancestor’s residence, generations ago. No one in the vicinity seemed to remember the family, but the courthouse land records showed that the motel where she elected to stay, was built on property once owned by the ancestor. Coincidence?