As a child, she made frequent visits to the church and felt a religious call which solidified as she grew older.

On 3 April 1875 at the invitation of Jean Langevin (first bishop of Rimouski) she entered the Sisters of the Little Schools and made her profession of vows alongside twelve others on 12 September 1879.

She established the Sisters of Our Lady of the Rosary on 12 September 1878 as the order's first superior and devoted all her work to mentorship and the institution of educational facilities in Rimouski.

On 15 August, the Feast of the Assumption, she met with professed members of the order and the next day, she knew that her end was near.

The cause of beatification for Turgeon was called for after her death and the Congregation of the Causes of Saints granted "nihil obstat" (nothing against) which allowed for the title of Servant of God to be bestowed upon her.