She was the first actress to be invested as a DBE (Dame Commander of the Most Excellent Order of the British Empire) in the 1918 King's New Year Honours List for services to hospital work during World War I.
Short biography in "Actresses of a Certain Character: Forty Familiar Hollywood Faces from the Thirties to the Fifties" by Axel Nissen.
She has appeared in three films that have been selected for the National Film Registry by the Library of Congress as being "culturally, historically or aesthetically" significant: Mrs. Miniver (1942), Lassie Come Home (1943) and Gaslight (1944).