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Deanna Johnston, M.A.

Deanna Johnston is the Director of Family Life for the St. Philip Institute. She has a bachelor’s degree in Philosophy and Spanish from the University of Memphis and a master’s degree in Theology from Newman University. Before joining the St. Philip Institute Deanna worked for a Catholic mission organization in Saltillo, Coahuila Mexico and San Antonio, TX and later worked at a parish in southwest Kansas for almost seven years. She is a wife and mother of four children.

Dr. Luke Arredondo

Luke Arredondo, PhD received his bachelor’s degree in philosophy at St. Joseph Seminary College, his master’s in theology at Notre Dame Seminary, and his doctorate in religion, ethics, and philosophy from Florida State University. His most important work is being a husband to his wife, Elena, and father to their four daughters and one son. He is the Director of Faith Formation.

Mikki Sciba

Mikki Sciba graduated from Benedictine College in 2005 with a bachelor’s degree in religious studies, youth ministry, and philosophy. As Catechetical Specialist for the St. Philip Institute, she develops and implements creative methods for evangelizing and catechizing children between the ages of 0-12 years. Mikki and her husband live in Tyler with their three children.

Fr. Justin Braun

Fr. Justin Braun has been a priest since 2012 and has served various roles in the Diocese of Tyler. He is the Season of Discipleship Director for the St. Philip Institute of Catechesis and Evangelization as well as a parish priest, uncle to nine wonderful nephews and nieces, brother to two hard working sisters, and the son of the most loving parents a kid could ask for. He is a skilled retreat leader.

Book a Speaker

Our speakers have extensive experience leading presentations, retreats, and workshops on a variety of topics, including faith and reason, apologetics, teaching methods, miracles, parenting, relationships, conversion, and the history of the Church. Contact us ( to schedule a speaker. Please be prepared with a list of possible dates and topics. Contact us early! You can even book several speakers to build a retreat suited to the needs of your parish. Please provide:

Talk Title*

*If you would like a speaker to speak on a topic not listed, just let us know. We are happy to develop new talks. 

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