Holroyde trained as a nurse at
The London Hospital under
Eva Luckes between 1909 and 1911. She was immediately promoted to holiday sister and then night sister, before leaving to become matron of the
Royal Flying Corps Hospital (subsequently the
Royal Air Force Hospital),
Eaton Square, London in 1917. She joined the College of Nursing in 1919 as part of the lobbying for state registration of nurses. In 1920 she was appointed Matron of the London Fever Hospital,
Islington. In 1928 she was appointed as a final examiner for the examinations for the Fever Nurses Register. Whilst she was matron during the
London Blitz in the
Second World War the hospital became a
casualty clearing station. == Retirement and death ==