Elizabeth Matilda Tansey is an Emerita Professor of the history of medicine and former neurochemist, best known for her role in the Wellcome Trust's witness seminars. She previously worked at Queen Mary University of London (QMUL).

Sir Henry Hallett Dale was an English pharmacologist and physiologist. For his study of acetylcholine as agent in the chemical transmission of nerve pulses (neurotransmission) he shared the 1936 Nobel Prize in Physiology or Medicine with Otto Loewi.