Marcia Keith (1859-1950)_ was an American Physicist. She earned an undergraduate degree from #mountholyoke and like many #womenscientists at the time, sought continuing education abroad in Europe. She was a charter member of the aps.physics and believed passionately in improving physics education. She never married. #singeladiesofscience #womeninphysics #physcis #womeninstem #feministscience #feministsciencestudies #singleladiesofscience #academicfeminism #feminism #highereducation #womeninstem