Joan Le Mesurier is best known as the widow and biographer of the actor John Le Mesurier, star of the much loved television show, Dad's Army. She is the author of Lady Don't Fall B...ver másJoan Le Mesurier is best known as the widow and biographer of the actor John Le Mesurier, star of the much loved television show, Dad's Army. She is the author of Lady Don't Fall Backwards and Dear John.ver menos