Will kellogg and his son worked together in the company. But they argued a lot, and in the end wii told his son to leave. By 1948, the kellogg company had sales of more than $100 million. Wii kellogg made million of dollars, but he continued to live a simple life. He lived in a simple two-story house and preferred to give most of his money to help others, especially children. In 1930, will kellogg had started the kellogg foundation to help children. Will kellogg died in 1951, at the age of ninety-one. He worked until the end of his life at the foundation. His company had become the world's largest producer of ready-to-eat cereal as the result of an accident. People continue to eat cereals because all they need is a bowl, a spoon, some milk, and a box of cereal.