Creelman was born on August 14, 1908, in Upper Stewiacke, Nova Scotia, the youngest of eleven children as well as the only child of a second marriage.
However, after her father's death, she decided to initially become a teacher in order to earn enough money to support her education.
[1] After being awarded a Rockefeller Fellowship, she studied at Columbia University in New York City, graduating in 1939 with a master's degree.
[1] Near the conclusion of the war, Creelman became chief nurse of occupied Germany's British zone, hired by the United Nations Relief and Rehabilitation Administration.
[1] After returning to British Columbia, she co-authored the Baillie-Creelman Report, assessing the status of Canadian public health nursing and making recommendations.