J. R. Simplot

John Richard ("Jack" or "J.R.") Simplot (; January 4, 1909 – May 25, 2008) was an American entrepreneur and businessman best known as the founder of the J. R. Simplot Company, a Boise, Idaho based agricultural supplier specializing in potato products. In 2007, he was estimated to be the 89th-richest person in the United States, at $3.6 billion. At the time of his death at age 99 in May 2008, he was the oldest billionaire on the Forbes 400.