Genetic confusion

I have been playing around with various genetic websites while waiting for my test kit. It gets pretty confusing, because a lot of them don't agree.

The fins a gravestone site lists James warren and Sarah Horrell as the parents of Alfred Alexander Warren. This is bad information. As a matter of fact, Alfred A warren is the son of Charles Warren. He is listed in the will as inheriting part of Charles's estate.

Charles is also listed as being executor of the estate of William Warren, who I figure must be his father. But I haven't been able to find anything that supports that. William warren was born in Maryland, in the area that would become D.C., but so far I have not been able to find anything concrete.

This has been fun, trying to ferret out small facts out of an enormous pile of........facts