Of course, I think Donnie is right. That Mr. Scott was the father of Lucinda's children. Regard his census, wherein he has children of his own, so obviously there was a first wife. And Lucinda may have been his long-time mistress. When his first wife died, he was able to finally marry Lucinda. I ask myself why would a man take on the care of so many children not his own ? Answer- they were his own.