Ellen Corby (June 3, 1911 – April 14, 1999) was an American actress and screenwriter. She is best remembered for playing the role of Esther "Grandma" Walton on the CBS television series The Waltons, for which she won three Emmy Awards. She was also nominated for an Academy Award and won a Golden Globe Award for her performance as Aunt Trina in I Remember Mama (1948). Description above from the Wikipedia article Ellen Corby, licensed under CC-BY-SA, full list of contributors on Wikipedia.

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Ellen Corby was a prolific American character actress and screenwriter who worked extensively in studio-era Hollywood cinema and television.
She is best remembered for playing Grandma Walton on the television series The Waltons and for her Academy Award-nominated supporting performance in I Remember Mama.
Her notable film appearances include supporting roles in Vertigo, Shane, It's a Wonderful Life, and Sabrina.