Attracta Rewcastle

Attracta Genevieve Rewcastle (née Candon, 1897 – 18 February 1951) was a doctor, politician, and the first female Commissioned Officer in the Royal Navy. Born in Roscommon, Ireland, Rewcastle attended University College Dublin where she studied medicine. After working as an Assistant Schools Medical Officer in Sheffield, she went on to a position at Great Ormond Street Hospital, as well as working in Private Practice.

After the war, Rewcastle served as a Conservative Party Councillor on Westminster City Council, and ran as the Conservative candidate for Willesden West constituency in the 1950 general election (losing to the incumbent Labour MP, Samuel Viand).

More information onthe Wikipedia page.