Bonnie Bartlett Daniels (born June 20, 1929) is a retired American actress. Her career spans seven decades, with her first major role being on a 1950s daytime drama, Love of Life. Bartlett is known for her role as Grace Snider Edwards on the Michael Landon television series Little House on the Prairie and as Ellen Craig on the medical drama series St. Elsewhere. Her husband, actor William Daniels, played her fictional husband Dr. Wikipedia