About the Author

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Father Donald Calloway, MIC, a convert to Catholicism, is a member of the Congregation of the Marian Fathers of the Immaculate Conception. Before his conversion to Catholicism, he was a high school dropout who had been kicked out of a foreign country, institutionalized twice, and thrown in jail multiple times. After his radical conversion, he earned a B.A. in Philosophy and Theology from the Franciscan University of Steubenville, Ohio; M.Div. and S.T.B. degrees from the Dominican House of Studies in Washington, D.C.; and an S.T.L. in Mariology from the International Marian Research Institute in Dayton, Ohio. In addition to Under the Mantle: Marian Thoughts from a 21st Century Priest (Marian Press, 2013), he has written No Turning Back: A Witness to Mercy (Marian Press, 2010), a bestseller that recounts his conversion story. He also is the author of Purest of All Lilies: The Virgin Mary in the Spirituality of St. Faustina (Marian Press, 2008). He introduced and arranged Marian Gems: Daily Wisdom on Our Lady (Marian Press, 2014). He is the author of the international bestseller Consecration to St. Joseph (Marian Press, 2019) and co-author of Consecration to St. Joseph for Children and Families (Marian Press, 2022). Further, he has written academic articles and is the editor of The Immaculate Conception in the Life of the Church (Marian Press, 2004) and The Virgin Mary and Theology of the Body (Marian Press, 2005). Father Calloway is the Vicar Provincial and Vocation Director for the Mother of Mercy Province. Sam Estrada is a Catholic freelance illustrator, writer, and videographer. As the eldest in a Catholic homeschool family, Sam has understood the importance of the faith since his youth, and has used his artistic gifts to attract young people to the faith. Sam has been illustrating professionally since 2010 and has over numerous publications, including Our Lady of Fatima, the Graphic Novel and Our Lady of Guadalupe, the Graphic Novel. He currently resides in Seattle, WA with his wife, where they enjoy eating Vietnamese food and singing in the choir for Mass.To find out more about Sam and his work, visit www.Prostrada.com