Mary McDonough
PMP Network Presents
Mary McDonough, known for her role as Erin Walton on The Waltons, discusses her book, 'Lessons from Waltons Mountain.' She shares insights about growing up on set and the challenges of reinventing herself after the show.
Mary McDonough
Actress, The Waltons
About Mary McDonough
Mary McDonough is an American actress and writer best known for playing Erin Walton in 213 episodes of The Waltons from 1972 to 1981. She reprised the role in multiple reunion television films throughout the 1980s and 1990s. McDonough later became an author, penning the memoir Lessons from the Mountain: What I Learned from Erin Walton, as well as novels including One Year and Christmas on Honeysuckle Lane, which was adapted into a 2018 Hallmark Channel film.
In this interview
- Discusses her memoir Lessons from Waltons Mountain about growing up on set
- Recalls Edgar Bergen performing a show for the kids during The Homecoming filming
- Describes Patricia Neal as graceful, elegant, and lovely to work with
- Credits Rosemary Clooney with teaching her to separate Mary from Erin
“All of us had decided at one point that if any of us ever got together and wrote a book, that the rest of us would get together and kill them.”— Mary McDonough, in this interview

