About AVAR

American Battlefield Trust

Our Officers

Stephen Humphreys

Stephen Humphreys, BA, MTh, MA, PhD



Stephen Humphreys was commissioned in the US Air Force following his completion of a BA in History at the University of North Texas. He served as an Aircraft Maintenance Officer, deploying in support of Operation Iraqi Freedom and Operation Enduring Freedom. Following an assignment as Assistant Professor of Aerospace Studies at Texas A&M University, he separated in order to attend a seminary program with the intent of returning to military service as a chaplain. A trip to a dig at Tel Gezer, Israel convinced him to become an archaeologist instead.

Stephen holds a Ph.D. in archaeology from Durham University as well as an MA in Archaeology and Biblical Studies and an MA in Theology from Southwestern Baptist Theological Seminary. His academic areas of interest are charity in the Early Christian era, and health and wellness in antiquity. His doctoral thesis was on the development of ‘Holy Water’ in the Christian church between the 4th and 7th centuries (spoiler: it was for demon-killin’). He is a National Geographic Explorer and a dedicated field archaeologist with dig experience in Israel, Jordan, Cyprus, the United Kingdom, and the USA.

Treva Barham

Treva Barham

Mental Health Clinician

Treva Barham comes to the AVAR team with 19 years of professional experience in mental healthcare, having previously worked in a community mental health setting, a university counseling center, a private practice, and at a medical clinic that also provided mental health and social services. She is a Licensed Professional Counselor and Supervisor with a Master of Arts in Family Psychology.  She has worked with diverse populations, including children, adolescents, elderly, adults, couples, families, veterans, and first responders. Some of her clinical approaches include cognitive behavioral therapy, dialectical behavior therapy, prolonged exposure, solution-focused therapy, and EMDR.  Treva currently serves as a mental health advisor to a firefighters’ association in addition to pursuing her Ph.D.

In her full-time role as AVAR’s Mental Health Clinician, Treva provides crisis planning and mental health support to veteran participants, staff, and partners on dig projects.  In between dig projects, she also develops and analyzes our program impact tools.

Mackenze Burkhart

Mackenze Burkhart, BA

Office Manager


Mackenze Burkhart has a BA in Archaeology and Anthropology from Dickinson College in Carlisle, PA. She brings in administrative experience in the non-profit sector, having spent the last five years working in her local food system as a farmer and food access advocate.

Mackenze’s first area of interest was biological anthropology, specifically identifying markers of nutrition, disease, and occupation in human remains. She attended field school through the Ohio State University at a cemetery that contained graves from a possible cholera epidemic, in the Tuscany region of Italy. Mackenze has maintained an interest in the evolution of public health, especially in relation to advances in agriculture and technology. With deep roots in Pennsylvania, she became interested in small-scale agriculture and the growing popularity of returning to pre-agricultural revolution farming practices.

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