MedicalPhilately.com

   Mary Jane Seacole (1805 – 14 May 1881) was a British-Jamaican  nurse who set up the "British Hotel" behind the lines during the Crimean War. She described this as "a mess-table and comfortable quarters for sick and convalescent officers", and provided succour for wounded servicemen on the battlefield.[4] Coming from a tradition of Jamaican and West African "doctresses", Seacole used herbal remedies to nurse soldiers back to health. She was posthumously awarded the Jamaican Order of Merit in 1991. In 2004 she was voted the greatest black Briton.