Allen Ludden - Children

We're showing Allen Ludden as the father of two children: Private and Private

The New York Times' obituary for Betty White says this: "Ms. White and Mr. Ludden remained married until his death in 1981. They had no children together, but she helped him raise his three children by a previous marriage, David, Martha and Sarah."

So:

- What are our sources for Prudence?
- Is Prudence possibly Sarah?

Also, we can remove "Ellsworth" from Martha's name, unless there's a good source for it. Her father adopted the surname Ludden in childhood, so she wouldn't have been born with that name.