born Feb. 26, 1852, Tyrone, Mich., U.S.
died Dec. 14, 1943, Battle Creek
born April 7, 1860, Battle Creek
died Oct. 6, 1951, Battle Creek
U.S. breakfast-cereal manufacturers.
John was a physician and vegetarian who in 1876 helped found a Seventh-Day Adventist sanitarium in Battle Creek, Mich. There he developed various nut and vegetable products, including a flaked-wheat cereal to serve to patients, one of whom was C.W. Post . John's younger brother, W.K., founded the W.K. Kellogg Co. in 1906 to manufacture dry breakfast cereals, cornflakes being its sole product in the early years. It soon became a leading U.S. producer of these and other convenience foods; its current annual sales exceed $9 billion. The W.K. Kellogg Foundation is one of the country's largest philanthropic institutions.