Marianne joined Theos in February 2022 and is the author of several Theos reports including Creating a Neighbourhood Health Service (2025), Moving on Project: Wraparound Survivor Support (2025), and co–author of Ashes to Ashes (2023). She holds a PhD in International Relations exploring the notion of Catholic agency in international society through the University of Notre Dame Australia, as well as a MA(Hons) in International Relations from the University of St Andrews. She is an Honorary Researcher for the Benedict XVI Centre for Religion and Society, and a former Lecturer for St Mary’s University.