This uniform belonged to Eleanor McCallum, one of the longest-serving members of the Women's Royal Canadian Naval Service (WRCNS).

McCallum entered the WRCNS at the time it was formed, and was subsequently appointed an officer. Along with her colleagues, she was among the first women to serve as a commissioned officer in a navy within the British Commonwealth. While the rank insignia on McCallum's jacket sleeve differs in detail from other branches of the Royal Canadian Navy, the names of the various officers' ranks were the same, unlike those in Britain's Women's Royal Naval Service.

Uniform, Service Dress, Lieutenant-Commander Eleanor McCallum

Service dress hat, CWM 19920141-001,
Service dress jacket, CWM 19920141-004
Necktie, CWM 19920141-008
Service dress skirt, CWM 19920141-005