Eileen was the eldest of five children born to parents Hilda Mary nee Hodgetts and Timothy Patrick Neenan (aka Tom) in 1904 in Williamstown, Victoria, where her father worked for Victoria Railways. Eileen's mother died in 1918 from complications of an appendectomy and her youngest brother died later in the same year. The remaining four children were cared for by Eileen's fathers' close knit family as he never remarried. The children attended St. Mary of the Immaculate Conception parish school. Eileen never attended secondary school but both she and her sister Hilda went on to be trained as nurses. Eileen started her training at the Austin Hospital. She was then assigned to various other hospitals over the next four and half years as she pr...