Johnny Crawford, The Rifleman star and original Mickey Mouse Club Mouseketeer, dies at 75

Entertainment Weekly

Crawford was one of the original 24 Mouseketeers in the first season of The Mickey Mouse Club, earning an Emmy nomination for best supporting actor in 1959 at age 13. In 1958, Crawford starred in the ABC western The Rifleman, playing the son of Chuck Conners' rancher character for five seasons. Crawford had been diagnosed with Alzheimer's disease and had been living in an assisted facility prior to his death