She launched her career as a commercial and graphic designer in St.John's and Ottawa. Her involvement with heraldic art began at the Department of National Defence. In 1989 she was appointed as Fraser Herald at the Canadian Heraldic Authority in Ottawa. She is the principal artist of the Authority and the first woman to hold a state herald appointment in the Commonwealth. Cathy Bursey-Sabourin has been responsible for the paintings made for the arms of the last five Governors General of Canada and the Coat of arms of Canada.
Designed by her the maple leaf emblem symbolizing Ottawa, in an arrangement with two smaller leaves representing the two sciences - genealogy and heraldry - was an official emblem of the 22nd International Congress of Genealogical and Heraldic Sciences held in 1996 in Ottawa. She provided detailed artwork for the new insignia of the Victoria Cross.
- "Royal Heraldry Society of Canada(RHSC)". Royal Heraldry Society of Canada. Retrieved February 9, 2012.
- Boudreau, Claire; Vachon, Auguste; Cogné, Daniel (1996). Genealogica & Heraldica (Proceedings of the 22nd International Congress of Genealogical and Heraldic Sciences in Ottawa from August 18 to 23, 1996). University of Ottawa Press. ISBN 978-0-7766-0472-5. Retrieved July 18, 2011.
- "Canada's Victoria Cross". Retrieved 9 February 2012.
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