Did Morgan Brittany Suzanne cupito appear in leave it to beaver?

No, she appeared as Opie's girlfriend in "The Andy Griffith Show" and as Chip's girlfriend in "My Three Sons". She was also in over 60 other shows during the 50's, 60's and early 70's before she became Morgan Brittany. Her name as a child actress was Suzanne Cupito and was listed as such up until around 1972. I think the last time she was credited as that was in an episode of "Love American Style" in '72.