Guichon was born in Montreal, Quebec, in 1947, and raised on a farm near Hawkesbury, Ontario. She moved to British Columbia in 1972. Her first husband, Lawrence Guichon, was killed in a motorcycle accident near the family ranch in 2003. She and her current husband, Bruno Mailloux, maintain their private residence in the Nicola Valley.
Ranching career
Prior to Guichon's appointment as Lieutenant Governor, she owned and operated Gerard Guichon Ranch Limited in the Nicola Valley in the British Columbia Interior. The Guichon family has ranched in the area since 1878, and Guichon's father-in-law was inducted into the Order of Canada in 1974 for his leadership in Cattleman's Associations and his contribution to agriculture in Canada. Her four children now manage the ranch with a 700 head cow, calf, and 700 yearling operation. Guichon studied Holistic Management, a farming method which promotes sustainable management of livestock by emphasizing their natural habitat. Along with her late husband, commercial pilot Lawrence Guichon, she was involved in introducing Holistic Management to the ranchers of British Columbia. In addition to her ranching initiatives, Guichon is also involved in several organizations. She previously served on the local hospital board and Community Health Council, and is now on the Community Health Foundation Board. Prior to this, she has served as a 4-H Leader and started a recycling society in Merritt, BC with a neighbour. She has also served as a director for the Fraser Basin Council of BC, as a director of the Grasslands Conservation Council of BC, as a member of the Nicola Water Use Management planning committee, and played the flute in the Nicola Valley Community Band. Prior to her appointment as Lieutenant Governor, Guichon served on the Provincial Task Force on Species at Risk and has just completed her two-year term as the president of the British Columbia Cattlemen’s Association. She has also been a part of the Ranching Task Force for BC and the British Columbia Agri-Food Trade Advisory Council.
Lieutenant Governor
Guichon was appointed lieutenant governor by Governor General of Canada David Johnston, on the advice of Prime Minister of Canada Stephen Harper on October 1, 2012, to succeed Steven Point. Guichon was sworn in on November 2, 2012, at the British Columbia Parliament Buildings. Guichon played a central role in the aftermath of the 2017 provincial election, which resulted in neither the incumbent Liberals or opposition New Democrats winning a majority. The balance of power rested with the Greens, who held three seats. Three weeks after the election, the Greens agreed to support an NDP minority government, which theoretically allowed NDP leader John Horgan to form government by one seat. However, incumbent premier Christy Clark refused to stand down until she got a chance to show that she had support on the floor of the legislature. Horgan introduced a no-confidence motion as an amendment to the Speech from the Throne, which passed on June 29, bringing Clark's government down. Clark advised Guichon to call new elections. She contended that the NDP would not be able to provide stable government due to the need to place one of its members in the Speaker's chair, resulting in a large number of 43–43 votes that would require the Speaker to use his casting vote. However, Guichon did not agree and refused to dissolve the legislature. Clark then resigned as premier, and Guichon invited Horgan to form a government.
