Marlin is the husband of Laurie and the father of four grown sons. He and his wife have been involved in many aspects of classical Christian education since 1992—including founding The Geneva School in Orlando, Florida, and Veritas Academy in Lancaster, Pennsylvania. Marlin served as a founding and permanent board member of the Association of Classical and Christian Schools for 22 years. He frequently writes and speaks on classical Christian education. He and Laurie began Veritas Press in order to provide the finest tools available to help like-minded parents educate their children. Today Veritas serves tens of thousands of students and families in over 50 countries every year with curriculum for classical education and through Veritas Scholars Academy, an online school.