Lim Beng Hong (1898 — 3 February 1979) OBE,[1][2] who preferred to be, and was most often, referred to as Mrs. B. H. Oon, was the first woman to be called to the Malayan Bar 1927.
[9] After receiving her law degree from University College London, Oon and her brother applied to the Bar and they both got admitted to the Inner Temple.
However, marriage did not stop her from applying to join the Bar of the Straits Settlements and the Federated Malay States.
At that time in British Malaya, women were prohibited from joining the Bar, so the law was changed in 1927 for Oon to be admitted.
However, Singapore soon fell into Japanese occupation as well, but sing the Asian population was allowed freedom, Oon decided to utilize that freedom and smuggle and deliver letters to prisoners of war that were held captive in Changi prison.