Currently serves as the Head of School of Marymount High School in Los Angeles, California. Prior to assuming her responsibilities in July of 2009, Jacqueline spent 25 years in higher education at Georgetown, the University of Minnesota, and Harvard. At Harvard, she served as Catholic Chaplain for 11 years and was President of the United Ministry, Harvard's consortium of 22 Chaplains from the world's religious traditions. She received her Masters of Divinity from Wesley Theological Seminary in Washington, D.C. She received her BA from Easter Mennonite University in Harrisonburg, Virginia and was named a Merrill Fellow at Harvard Divinity School. She is from Princeton, NJ.
Her passion remains empowering young women to realize their potential and advocating for global issues of peace and justice.

Ms. Sarah Gallagher, BA (Hons) HDipEd, MA (Hons) (University College Galway, Ireland) is Headmistress of Marymount International School Rome since August 2016 and and had previously been Headmistress of Marymount International School London from August 2010 -16.

Ms. Gallagher received her Bachelor's Degree, a Higher Diploma in Education and a Master's Degree in Ancient Classics at the National University of Ireland, Galway and pursued doctoral studies in the United States. An experienced administrator, Ms. Gallagher is also a teacher of Latin, Greek, Classical Civilisation and Ancient History. She has taught in schools in London and in Rome and in higher education in the United States

Serafim Assunção e Costa has been the head of the Sacred Heart of Mary School in Fatima, Portugal, since September 2000. He holds a degree in Chemical Engineering from the Higher Institute of Engineering of Porto and a degree in Industrial Chemistry from the Faculty of Sciences of the University of Coimbra. He is a graduated teacher for Physical and Chemical Sciences by the Higher School of Education of Santarem. He has been a collaborator at this institution since September 1993.