text: *Thomas Edison's work in chemistry, including the development of carbon filaments and the nickel-iron battery and research into domestic sources of rubber at the Thomas Edison National Historical Park in West Orange, New Jersey, The Henry Ford in Dearborn, Michigan, and the Edison and Ford Winter Estates in Fort Myers, Florida.
  *Izaak Maurits Kolthoff's role in establishing the modern discipline of analytical chemistry at the University of Minnesota in Minneapolis, Minnesota.
  *The research and professional contributions of Rachel Holloway Lloyd, the first American woman to receive a Ph.D. in chemistry (awarded by the University of Zurich in 1887), at the University of Nebraska-Lincoln where she taught.