In June 2015 Dr. Quanstrom became the dean of the School of Theology and Christian Ministry after being a full-time professor of theology and philosophy at Olivet; teaching courses in theology and practices, such as Doctrine of Holiness and Pastoral Care and Counseling.
He is the author of two books and numerous articles. His doctoral dissertation was published in 2004 by Beacon Hill Press under the title A Century of Holiness Theology, which some consider to be one of the publisher’s landmark publications. His second book, From Grace to Grace, is an exploration of the call to holiness and was published by Beacon Hill Press in 2011.
Dr. Quanstrom is also the lead pastor at College Church of the Nazarene, University Campus, in Bourbonnais.
He and his wife, Debi (Lucas), are the parents of three sons: Lukas, married to Rachel (Studebaker), and the parents of their two grandsons, Gabriel and Reuben; Ryan; and Daniel, married to Kayla (Luna).