John Harvey Kellogg and in 1898 released the first batch of Sanitas Toasted Corn Flakes. A modified version with a longer shelf life was released in 1902. By that time, both "Granose Biscuits" and "Granose Flakes" were available. Will Kellogg continued to develop and market flaked cereal. When he proposed adding sugar to the flakes, John would not agree to the change. So, in 1906, Will started his own company, the Battle Creek Toasted Corn Flake Company. This marked the start of a decades-long feud between the brothers. Will's Battle Creek Toasted Corn Flake Company would eventually became the Kellogg Company, while John
Winthrop Kellogg dolphins and sonar. Winthrop Niles Kellogg was born in 1898 in Mount Vernon, New York. He began undergraduate study in 1916 at Cornell University for one year before joining the Great War (World War I) in Europe. For two years he served as part of the American Expeditionary Forces in the US Army Air Service, earning him the prestigious Croix de Guerre. After the war, he returned to undergraduate study at Indiana University. There he met Luella Dorothy Agger of Indianapolis, whom he would marry in 1920. Kellogg and Agger had two children, Donald Agger Kellogg and Shirley Mae Kellogg.