Jesuit devotion to the Sacred Heart, however, did not actually begin with St. Margaret Mary. In fact, the devotion had already achieved a quasi-public status among the faithful by the middle of the 16th Century, complete with specially formulated prayers and a battery of pious practices.
Jesuit ascetical writers and mystics, such as Fr. Alvarez de Paz, St. Francis Borgia, St. Peter Canisius, St. Aloysius Gonzaga, and St. Alphonsus Rodriguez were practicing and promoting this form of the devotion decades before Christ prescribed to St. Margaret Mary its official form (i.e., celebrating the Solemnity on the Friday after the Octave of Corpus Christi, observing the monthly First Friday devotion, hoping in the twelve promises, etc.).
This is hardly surprising. It’s hard to see how a devotion to the divine-human love of Christ could not appeal to an order dedicated to the “salvation of souls” and accustomed to contemplating the Incarnation after the method of the Spiritual Exercises.