I don’t remember her. But then, I was much younger when the series first aired, so naturally, I was more aware of what the kids were saying or doing than the adults. I do recall that Richard Thomas, the actor who played the oldest son John-Boy, got more attention than almost anybody. I think he was portraying the writer while living through the stories.
I haven’t heard much from Richard Thomas since then. That role may have been his artistic highpoint.
He had a regular role on The Americans, but his character was murdered toward the end of the season that just ended.
The "John-Boy" character always irritated me. Too over-the-top wholesome and overly earnest. I liked the two batty spinster sisters who made moonshine (and tried telling everybody it was just medicine). A couple of those Walton girls were good looking. Mary Ellen being one of them.