Catherine Ciingi is a founding member and former superior general of the Institute of the Holy Trinity Sisters. She has been involved in key decision-making processes that have shaped the establishment and growth of the institute. Under her leadership, the sisters led innovative farming projects to promote sustainability in the semi-arid region of Isiolo, Kenya. After serving as superior general, she joined the Professional Development of Congregational Leaders, contributing to leadership training and office operations.

Olga Shapoval is a sister of the Order of Virgins in the Diocese of Kyiv-Zhytomyr, Ukraine. She graduated from Kyiv International University with a degree in philology, specializing in English, French, and Italian languages and literature. She also completed studies at the St. Thomas Aquinas Institute of Religious Sciences in Kyiv as a catechist and evangelizer. For several years, she taught catechism to children and conducted Taizé meetings for young people in Kyiv.