1 May, 2021
Helen Murray Free died on May 1, 2021, in Elkhart, Indiana, at the age of 98.
Her death was due to complications from a stroke. Her legacy as a pioneering
chemist and advocate for science education remains significant.
1 May, 2010
The work of Helen and Al Free in developing diagnostic test strips was
designated a National Historic Chemical Landmark by the American Chemical
Society on May 1, 2010, at the ETHOS Science Center in Elkhart, Indiana. This
recognition underscored the profound impact of their innovations on medical
diagnostics.
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