John Harvey Kellogg (above) was an medical doctor in Battle Creek, Michigan, who ran 
a sanitarium. He is best known for the invention of the corn flakes breakfast cereal with his brother, Will Keith Kellogg (pictured below).  

Will K. Kellogg

Kellogg’s Corn Flakes ad from 1914

Actor-screenwriter Jaleel White played the part
of Steve Urkel on the TV sitcom Family Matters
which was seen on ABC from 1989 to 1997,then
made the switch to the CBS network from 1997
to 1998. White also appeared on the comedy
series The Jeffersons. He got his start in the
business doing Kellogg’s cereal commercials
at the age of 3.