Doctor of Leadership Faculty and Team

Lead Mentor

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Jason Swan Clark

Doctor of Leadership in Global Perspectives Lead Mentor

Learn more about Jason.

Special Guest Instructors

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Martyn Percy

Position: Guest lecturer

Academic and Professional Background: Past Dean of Christ Church, Oxford and past Principal of Ripon College Cuddesdon and the Oxford Ministry Course; Professor of Theological Education at King’s College London; Honorary Canon of Salisbury Cathedral and Canon Theologian of Sheffield Cathedral; he has served as a Director the Advertising Standards Authority and currently serves as Independent Adjudicator for the Portman Group and as a Commissioner for the Direct Marketing Authority. His recent books include:

  • The Future Shapes of Anglicanism: Charts, Currents, Contours (2017)
  • Untamed Gospel: Poems, Prose and Protests (2017)
  • Clergy, Culture and Ministry The Dynamics of Roles and Relations in Church and Society (2017)
  • Reasonable Radical?: Reading the Writings of Martyn Percy (2018)
  • Others: A Very Short Book About Beliefs (2023)
  • The Spirit of Witness: Liturgies, Prayers, Poems, and Reflections for Dissenters (2023)
  • An Advent Manifesto: Daily Readings and Reflections from Isaiah and Luke (2023)

Project Faculty

Project Faculty work with advisees to provide individual & small group guidance for doctoral project development within the project portfolio research sequence.

Seminary faculty routinely serve as Project Faculty within the doctoral programs. See Portland Seminary faculty page for details.

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Clifford Berger

Position: Director, Doctoral Programs

Learn more about Clifford.

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Holley Clough

Position: Project Faculty (Portland Seminary); Adjunct Faculty of Bible and Ministry Practicums, Coaching and Seminary Graduate Courses at The King’s University; Fernwood Adult Education Practice, Principal, Implementing Director Emeritus, Multnomah University Adult Degree Completion Program. 

Current Board Activity: World Team, Intl., Christian Adult Higher Education Association, Mission ConneXion

Current Mission Activity: Agros International serves the poor in Central America through holistic development. Leader and participant since 2004.

Academic and Professional Background: BA, Management and Organizational Leadership, George Fox University; MA, Pastoral Care and Life Coaching, Western Seminary; DMin,Teaching and Writing (Hornecker Award, Dissertation), Gateway Seminary; International Coach Federation, Professional Coach Certification (PCC Level).

Expertise and Research InterestsAdult higher education and life learning, pastoral ministry and leadership development, life coaching, holistic cross-cultural development, leisure and educational travel.,

Office: 503-720-5599

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Aaron Friesen

Position: Project Faculty; Associate Pastor, CitySalt Church in Eugene, OR; Executive Director of Storyline Kids

Academic and Professional Background: BS, Pastoral Studies, Eugene Bible College; MDiv, Fuller Theological Seminary; Ph.D., University of Wales.

Expertise and Research InterestsHistory of Holiness-Pentecostal movements in America; child theology; global Pentecostalism; Pentecostal theology; Luke-Acts


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Kristin Hamilton

Position: Project Faculty

Academic Background: Doctor of Leadership in Global Perspectives, Portland Seminary; MDiv from George Fox Evangelical Seminary; Master of Religion in Spiritual Formation from Northwest Nazarene University; BS In Ministry and Theology from Warner Southern University

Expertise and Research Interests: Complicity of the White Evangelical Church in Racism and other Systems of Oppression, Lament and Mourning, Egalitarian Relationships in Marriage and Church Leadership, Spiritual Formation


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Jennie Harrop

Position: Project Faculty, Portland Seminary; Associate Dean, George Fox University; Lead Pastor, Cedar Creek Church

Educational Background: PhD in English, University of Denver; DMin in Semiotics, Portland Seminary; MFA in Creative Writing, Colorado State University; BA in Journalism, Pacific Lutheran University

Expertise and Research Interests: Writing, Literature, Apologetics, Semiotics, Strategy, Innovation, Culture, Future Studies



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Garfield Harvey

Position: Project Faculty (Portland Seminary); Lead Pastor, Emerge Berkeley

Academic and Professional Background: AA/AS Degrees in Social & Behavioral Science, Business Management, Sociology, and CSU General Education from Contra Costa College; Master of Religious Education and MAR: Worship Studies from Liberty University; MA Ministerial Leadership, Southeastern University; DMin in Leadership and Global Perspectives, Portland Seminary.

Expertise and Research Interest: Garfield has more than 20 years of experience planting churches internationally. He focuses on global leadership, cultural intelligence, cross-cultural worship, church planting, intercultural ministries, and strategic analysis.



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Mario Hood

Position: Project Faculty; Associate Pastor, Church on the Living Edge in Orlando, Florida; Adjunct Professor at Southeastern University in Lakeland, Florida.

Educational Background: BS in Christian Ministry, Bible Emphasis from Lee University; MA in Ministerial Leadership from Portland Seminary; DMin, Portland Seminary. MHS EQ-I 2.0 Certified; Youth and Family Life Coaching Certified from The Character and Self-Esteem Institute.

Expertise and Research Interests: Leadership and global perspectives, paracletic leadership framework, Gen Z engagement, practical theology, emotional intelligence.



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John McLarty

Position: Project Faculty; Senior Minister, First United Methodist Church, Wichita Falls, Texas

Academic Background: Doctor of Leadership in Global Perspectives, Portland Seminary at George Fox University; Master of Divinity, Brite Divinity School at Texas Christian University; Bachelor of Business Administration, Stephen F. Austin State University

Expertise and Research Interests: The “Essential” Church in times of crisis; leadership in the local church and beyond; church planting; church culture; pastoral transitions

Photo of Karen Tremper

Karen Tremper

Position: Project Faculty

Academic and Professional Background: BA Home Economics, Fresno State University; MA Theology, Fuller Theological Seminary; PhD Intercultural Studies with an emphasis in Leadership, Fuller Theological Seminary. Wycliffe Bible Translator/Summer Institute of Linguistics--Eastern Keres Pueblo Indians translation project; Youth With A Mission--Discipleship Training School Director Harpenden, UK; Professor Biblical Studies and Intercultural Studies at Life Pacific College; Director of Global Life; Intercultural Development Inventory (IDI) Qualified Administrator; ordained minister, Foursquare Church.

Expertise and Research Interests: Women in Leadership, Leadership Training of Emerging Adults, Cultural Competency, Team Training for Cross-Cultural Experiential Learning, Briefing, Debriefing and Re-Entry for Cross-Cultural Experiences, Inclusion of Underrepresented Students in HSI colleges and universities, and Leadership development of Intercultural Teams.


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Ekaputra Tupamahu

Position: Project Faculty; Assistant Professor of New Testament, Portland Seminary

Learn more about Ekaputra

Doctor of Leadership Faculty and Team

The Seminary Doctoral Team manages the program online platforms, organizes the Advances, and provides support to students and Project Faculty, in-person or online. In short, this team is the 'glue' that holds the various elements of the program together.

Clifford Berger

Director, Doctoral Programs

Darcy Hansen

Darcy Hansen, DMin

Associate Director, Doctoral Programs

Jen Macnab

Jen Macnab, MPA

Assistant Director of Academic Engagement, Doctoral Programs

Heather Rainey

Program and Operations Coordinator, Doctoral Programs