Caroline Cassels qualified as a Registered Nurse at St Mary’s Hospital, Paddington.

She started working as a Staff Nurse at King Edward V11’s Hospital for Officers, where she was promoted to Ward Sister. She then was appointed as Matron, a post she held for over 20 years. She was awarded firstly an MVO, an award personally given by HM The Queen, followed by an LVO. (Lieutenant of the Royal Victorian Order).