Breakfast cereal he launched the Cornflakes brand, which overnight captured a national market. Soon there were forty rival manufacturers in the Battle Creek area. His brother William K. Kellogg (1860–1951) worked for him for many years until, in 1906, he broke away, bought the rights to Cornflakes, and set up the Kellogg Toasted Corn Flake Company. William Kellogg discarded the health food concept, opting for heavy advertising and commercial taste appeal. Later, his signature on every package became the company trademark. The second major innovator in the cereal industry was Charles W. Post, a salesman who was admitted to Kellogg's sanitarium as
Will Keith Kellogg Will Keith Kellogg Will Keith Kellogg, generally referred to as W.K. Kellogg (April 7, 1860 – October 6, 1951), was an American industrialist in food manufacturing, best known as the founder of the Kellogg Company, which to this day produces a wide variety of popular breakfast cereals. He was a member of the Seventh-day Adventist Church and practiced vegetarianism as a dietary principle taught by his church. Later, he founded the Kellogg Arabian Ranch and made it into a renowned establishment for the breeding of Arabian horses. Kellogg started the Kellogg Foundation in 1934 with $66 million in Kellogg company