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 Edey Winthrop Kellogg Edey Winthrop Kellogg "Kelly" Edey (1938–1999) was a noted collector and horologist who lived in Manhattan, New York City. His collection of timepieces is now in the Frick Collection. He also makes appearances in Andy Warhol's "Screen Tests". Through his mother's family, Kelly was an heir of Morris W. Kellogg, founder of a major engineering company. He grew up in Upper Brookville, Long Island and graduated from Amherst College. His father, Maitland Edey, was an author and editor of Time-Life Books; his mother, Nancy Winthrop Edey was a psychiatrist and activist in the field of women's reproductive rights.