Ilsley /ˈɛlzliː/ Silias Boone (1879–1968) was a charismatic speaker, a powerful organizer, a magazine publisher and the founding father of the American Sunbathing Association (ASA)—later reorganized as the American Association for Nude Recreation (AANR). As a publisher he distributed the first nudist magazine in the United States. That publication eventually led to a challenge to the U.S. Postal Service's ban against sending obscene materials through the mail. Boone took his challenge all the way to the U.S. Supreme Court which struck down the ban.