DescriptionMargaret D. Foster, in Lab, 4 October 1919.jpg
Margaret D. Foster, seen in her lab. The original caption by the National Photo Company is "Miss Margaret D. Foster, Uncle Sam's only woman chemist, Oct. 4/19" - that's possibly a bit misleading, though she definitely was the first female chemist in the United States Geological Survey team.
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PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Margaret_D._Foster,_in_Lab,_4_October_1919.jpg
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