https://www.metv.com/stories/harriet-macgibbon-was-nothing-like-mrs-drysdale

"I'm not a Hillbilly Clampett by any means," said MacGibbon.

I loved Harriet MacGibbon as Margaret Drysdale. She was perfect for the role. A poster from the article wondered why she was in just 3 episodes of season 8 and none in season 9. I had read once that her husband was sick and she left to help with him. It would have been wonderful to see her in season 9.