My mother, an author, left her literary properties to her four daughters. Her will does not say anything about the daughters' heirs. Two years after my mother's death, my oldest sister passed away, and her husband died a year later. I am the youngest daughter and the executor. I sent my oldest sister's share of income to her husband after her death, since he had supported and cared for her. Do I distribute income that comes to the estate to just the surviving daughters, or should I distribute my oldest sister's share among her five children?