|Florence Nightingale OM RRC|
Florence Nightingale (1820-1910).
Scourge of bone-idle quartermasters and quack surgeons, she cleaned up the mess (the barracks was built over a giant cesspit). Once done, went home to pen a scathing report for a Royal Commission which revolutionised both military and civvy medical and nursing practice.
Possibly suffering from PTSD, she then retired to her bed but continued to direct, nag and bully anyone who got in her way of upping the standards. In 1883 she was awarded the Royal Red Cross and in 1907 the Order of Merit - the first woman to be awarded this prestigious and exclusive honour. She was once featured on the UK £10 banknote.