She spent 11 years as an unpaid script assistant at Poverty Row Pictures before becoming an actress(Her mother prepared all the lunches for staff).
Suffered a serious stroke in 1976.
Returned for The Waltons (1972)' last show of the 1977-1978 season.
In March of 2000, she was left out of the yearly "In Memoriam" segment of the The 72nd Annual Academy Awards (2000). Ellen, who was once nominated for an Oscar for her Supporting Role in I Remember Mama (1948), had really only played small bit parts in motion pictures for twenty years, before she became a key part of television's The Waltons (1972). The Academy chose instead to memorialize another small bit-part actor in films, Henry Jones.
Replaced Jessica Tandy as Aunt Trina in I Remember Mama (1948) after Tandy dropped out of the project in order to pursue A Woman's Vengeance (1948).
Ellen Corby was an enthusiastic practitioner of Transcendental Meditation, and was trained by its founder, Maharishi Mahesh Yogi, in 1969, as a TM teacher.
Played Edgar Bergen's wife twice - once as Aunt Trina in "I Remember Mama", and once as Grandma Walton in "The Homecoming".
Corby was quoted as saying that her first acting job was in "Twisted Rails" according to the April 1985 issue of "Films in Review.".
Lived with Stella Luchetta from 1954 until her death.