Mary Carr was an American film actress and was married to the actor William Carr (1866–1937). She appeared in 144 films between 1915 and 1956. She was famous for having given birth to several children and for this was considered an expert in motherhood which led to her being given some of filmdoms plum mother roles in silent pictures, especially Fox's 1920 Over the Hill and to the Poor House which was a great success. She was interred in Calvary Cemetery.
Almost all of her children were involved in the film business. All of them appeared with her in Over the Hill