Duff Grant was a member of the College of Nursing, later the
Royal College of Nursing (RCN), from 1916 onwards. In 1950 Duff Grant succeeded Dame
Louisa Wilkinson as president of the RCN, serving for two years. From 1951 to 1957 she was also president of the
National Council of Nurses (an organization that merged with the RCN in 1963). Duff Grant also represented the
Queen Elizabeth, the Queen Mother, on the board of
The Queen's Institute for District Nurses. As a practicing
Anglican, she was a member of the Guild of St Barnabas throughout her nursing career, becoming president and chairman 1953–1980. In 1955, she took a voluntary role as the headquarters training advisor to
St. John's Ambulance, later becoming the chief nursing officer (1959–1965). == Awards and honours ==