Born On Your Day
Helen Murray Free
National Science and Technology Medals Foundation, Ryan K. Morris, CC BY-SA 3.0, via Wikimedia Commons

inventorscientist

Helen Murray Free

Inventor · born February 20, 1923 · died 2021

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About

Helen Murray Free was an American chemist and educator. She is most known for her work on in vitro self-testing systems for diabetes and other diseases.

Adapted from Wikipedia (CC BY-SA 4.0).

Milestones, by age

Dated facts from Wikidata; ages marked “about” come from year-only dates.

  1. ~87Received the National Medal of Technology and Innovation2010
  2. ~88Named National Women's Hall of Fame2011

Sources

Every fact on this page traces to one of these.

Sources (2)

Also born on February 20

Helen's most notable birthday twins

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1937 · United States

$7.7Bolder estimate, as of 2025 · Forbes

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Governor Eric Holcomb, Public domain, via Wikimedia Commons

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Herbert Kohler, Jr.

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1939–2022 · United States

$7.3Bolder estimate, as of 2019 · Forbes

Herbert Vollrath Kohler Jr. was an American billionaire businessman, a member of the Kohler family of Wisconsin, and the executive chairman of the Kohler Company, a manufacturing and hospitality company in Kohler, Wisconsin, best known for its plumbing products, golf courses…

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Ansel Adams
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1902–1984 · United States

Ansel Easton Adams was an American landscape photographer and environmentalist known for his black-and-white images of the American West.

J. Malcolm Greany, Public domain, via Wikimedia Commons

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Kurt Cobain
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Kurt Cobain

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1967–1994 · United States

Kurt Donald Cobain was an American musician and songwriter. He was the lead vocalist, guitarist, primary songwriter, and a founding member of the grunge band Nirvana.

P.B. Rage from USA, CC BY-SA 2.0, via Wikimedia Commons

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Sources (2)