She was one of the founders of the Provincial Housewife's School (French: L'École Ménagère Provinciale), which later became the home economics department of the Université de Montréal, and an advocate who pressed for the founding of juvenile courts.

[5] On 15 April 1875 at Saint-Jacques Cathedral in Montreal, she married Frédéric-Liguori Béique, a lawyer who became president of the bar association and a senator.

Their interests included access to education for women, aid to the poor and unemployed, Civil Code reforms, temperance, worker housing and other issues.

[5] In 1913, she resigned as president of FNSJB to turn her attention to war work,[8] becoming involved in both the Canadian Red Cross and the Khaki League,[5] an assistance organization for returning veterans.

[5] The women who joined the CPSF were primarily members of two older feminist groups, the Montreal Suffrage Association and the FNSJB.

[11] Besides Dessaulles-Béique and Gérin-Lajoie, among the founding members of CPSF were Thérèse Casgrain, Carrie Derick, Grace Ritchie-England, Idola Saint-Jean, and Isabella Scott.