In 2003, Farris published a children's book about Dr. King's childhood and the siblings' upbringing in the 1920s titled "My Brother Martin: A Sister Remembers Growing Up with the Rev. Dr. Martin Luther King Jr." She followed that with an autobiography in 2009 titled "Though It All: Reflection on My Life, My Family, and My Faith."
Just as she watched over her younger brothers when they were children, decades later, Farris helped ensure King's legacy lived on following his assassination in 1968.
A great civil rights activist in her own right, Farris joined Coretta Scott King, King's widow, in establishing the King Center for Nonviolent Social Change in northwest Atlanta in June 1968.
A devoted wife, mother, and grandmother, Farris was married to Isaac Newton Farris Sr. for 57 years before his passing. The couple had two children, Isaac Farris Jr. and Dr. Angela Farris-Watkins.