Frances Mary Gore Micklethwait (1867 – 25 March 1950)[1] was an English research chemist, among the first to study and seek an antidote to mustard gas during the First World War.

[1] After obtaining her degree, Micklethwait 'carried out a substantial and varied series of researches' in the field of organic chemistry, a relatively new area of science that would be of major global importance.

[1] With Morgan, Micklethwait co-authored 22 research papers and became one of the most prolific female authors of chemistry publications of her time.

[3] Officially, Frances Micklethwait's MBE was for her work as an 'Experimental Chemical Supply Officer, Trench Warfare Department, Ministry of Munitions.'

She was among the first to study mustard gas, a particularly pernicious chemical because, unlike chlorine, it is invisible and its effects are not immediately noticeable".