Powell entered trained at St. George's Hospital, London in 1934 and qualified as a
State Registered Nurse in 1936. She then undertook midwifery training at St. George's Hospital, London and in Gloucestershire, attaining her Registered Midwife qualification from the
Central Midwives Board in mid-1939. She first worked at the emergency maternity hospital at Potslip Hall, Gloucestershire and, on its closure, as a district nurse/midwife for a short time. Returning to London in 1940 she gained her Nurse Tutor Certificate from
Battersea College of Technology(1941) and Diploma in Nursing from
University of London(1942). Powell was appointed sister tutor at
Ipswich Borough General Hospital in 1943 and principal tutor at
Manchester Royal Infirmary in1946. She joined the
Royal College of Nursing in 1934. == Later nursing career ==