Dr. Daniel Isgrigg has served as the director of the Holy Spirit Research Center and Archives in the ORU Library since 2018. In this role, Dr. Isgrigg directs the preservation and promotion of this historic archive of Pentecostal and Charismatic resources visited by researchers from around the world. His expertise also includes the history of ORU, the life of the founder Oral Roberts, and the legacy of the Holy Spirit in the DNA of this university.

As a librarian, Dr. Isgrigg loves to teach students how to become experts at research through utilizing the amazing resources available to them in the library to help them produce quality work and excel in their academic pursuits.

Dr. Isgrigg holds a Ph.D. in Pentecostal History and Theology from Bangor University (Wales), and is also an ORU Alum with B.A. and M.A. degrees in Theological-Historical Studies. Prior to coming to ORU, he served for 20 years in ministry in Assemblies of God churches in the Tulsa area.

Dr. Isgrigg is the author of several books and articles on various aspects of Pentecostal and Charismatic history. A selection of the most recent include the following:

  • Imagining the Future: The Origin, Development, and Future of Assemblies of God Eschatology (Tulsa, OK: ORU Press, 2021)
  • Pentecost in Tulsa: The Revivals and Race Massacre that Shaped the Pentecostal Movement in Tulsa (Lanham, MD: Seymour Press, 2021)
  • Receiving Scripture in the Pentecostal Tradition: A Reception History, edited with Martin Mittelstadt and Rick Wadholm, Jr. (Cleveland, TN: CPT Press, 2021).
  • “‘I Tried Poverty’: Exploring the Psychological Impact of Poverty and Prosperity in the Life of Oral Roberts” Spiritus: ORU Journal of Theology 5, no. 1 (2020), 5-24.
  • “The Latter Rain Revisited: Exploring the Origins of the Central Metaphor in Pentecostalism,” Pneuma 41, no. 3–4 (2019): 439–457. (Winner of the Foundation for Pentecostal Scholarship Outstanding Article 2020).
  • “Healing for All Races: Oral Roberts’ Legacy of Racial Reconciliation in a Divided City,” Spiritus 4, no. 2 (2019): 227-256.


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