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
Operation Cornflakes by using the same pattern of mission that a previous OSS operation in Hungary undertook the OSS would craft their more intricate Operation Cornflakes. The distribution of propaganda in letters and distributed by the German postal system was thought to be an ideal method of reaching the German population and undermine the support of Adolf Hitler. Operation CORNFLAKES began with OSS officials collecting any and all German POWs that had experience with the German postal service or Reichspost. These POW’s were coerced with meals in exchange for information in collection, sorting, canceling and delivery of the mail. The OSS did