She served overseas for three years,[1] and was one of the only CWAC members chosen to accompany the invading Allied forces to Italy in 1944.
[2][1] In 1930, Mumford immigrated to Canada and began working as a governess, teaching the children of a naval lieutenant.
She was sent to England aboard the Queen Elizabeth I, and for two years Mumford worked at the office of the Judge Advocate General at Canadian Military headquarters.
When she reached Gibraltar along the way, her convoy was attacked by German U-boats, and she saw a Canadian medical ship torpedoed and sunk.
Upon arriving at their destination, Mumford was one of only 11 CWACs chosen to go into Italy with the invading forces; she evacuated wounded soldiers, sometimes going days without sleep.