 In 1944, she moved to the Courtauld Institute of Biochemistry at Middlesex Hospital Medical School in London, working on synthetic analgesics to replace opiates, in a team that included Peter Claringbould Williams, Edward Charles Dodds and Wilfrid Lawson.She also worked on oestrogens with Williams and A. E. Wilder-Smith, developing expertise in bioassays.She started to work on adrenal steroids with James Francis Tait in 1948, building on work by Ralph Dorfman.