Alongside Msgr. Kelly throughout the journey of creating Immaculata and fostering it into a great high school were the Sisters, Servants of the Immaculate Heart of Mary. Over the past 50 years, all have left their mark on this school. To represent the religious and lay faculty who were the stewards of the school, Sr. Dolores Margaret IHM was selected. For over 30 years, Sr. Dolores Margaret IHM built a music program that consistently ranks among the top in the state and the country. The level of loyalty from parents, alumni, and students to Sr. Dolores Margaret IHM and the music program is phenomenal and a testament to her steadfast dedication to Immaculata.