Clinical Staff

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Jeffery Derry, MA, NCC - Clinical Director
Jeff is a native of Colorado and began his clinical career working with adolescents in the San Luis Valley using experiential/wilderness approaches while working on his master’s degree.  Now with seven years’ post-master experience, he has developed a successful reputation for outstanding clinical skills, excellent service, and solid wilderness and transitioning skills while working with adolescents and families in Colorado.  In addition, Jeff supplied counseling services and training for families, individuals, and corporations through his private practice.  Completing both his bachelor and master’s degrees in Colorado, he previously worked as a Treatment Coordinator, Case Manager and Group Facilitator for the Lathrop Park Experiential Program (Youthtrack Corp) and the San Luis Valley Youthtrack; a Crisis Response Clinician for Spanish Peaks Mental Health; and a Treatment Coordinator and Clinician for over five years with the Griffith Centers for Children Programs at the Colorado Springs and Larkspur campuses.  As noted, he also ran a successful private practice in Colorado Springs.  All of us at SUWS Adolescent and Youth Programs were excited to lure him farther west to head up the clinical team.

Daniel Edgerton, MSW - Field Supervisor
Daniel comes to SUWS from Colorado, where he received his MSW from the University of Denver.  The outdoors is a familiar and comfortable teaching and therapeutic environment for Daniel, and he is equally at home with adolescent populations.  He has worked as a marriage and family therapist, case manager for a high-intensity treatment team, and mental health counselor in a variety of settings, including a residential treatment center.  He has taught outdoor living classes and instructed a variety of athletic endeavors including soccer, basketball, tennis, track and field, archery, sailing, and waterskiing.  Daniel is a member of the National Association of Social Workers and the American Association of Marriage and Family Therapists.  We are particularly excited about his membership on the SUWS team.

Justine O'Donnell, M.S, Doctoral Candidate - Field Supervisor
Justine received her B.A. in English Literature from the University of Montana and studied Irish literature in Galway, Ireland, and Spanish at the Instituto Cultural de Oaxaca.  Prior to graduate school, she worked for three years as a field instructor for SUWS, followed by another three as a field supervisor.  Justine is completing her doctorate in clinical psychology from Pacific University in Forest Grove, Oregon.  She recently completed a predoctoral internship at the counseling center at California Polytechnic State University in San Luis Obispo.  Throughout her schooling Justine worked with an educational consulting firm in Portland, Oregon, helping place students with behavioral, emotional and learning difficulties in specialized academic settings to support their specific needs.  She also worked at an inpatient substance abuse rehabilitation center and ran a drug and alcohol recovery group, as well as participating on a research team specializing in the treatment of anxiety disorders.  Justine has received extensive training in Cognitive-Behavioral Therapy, Dialectical Behavior Therapy, Insight-Oriented Therapy and some psychodynamic theory.  When it’s time to relax, Justine enjoys reading, cooking, traveling, knitting and “walking the dogs.”   

Sean Tomkinson, LCSW - Field Supervisor
Sean Tomkinson, LCSW, found his way to SUWS from Pocatello, Idaho, where he worked as a therapist and clinical supervisor for five years. He has worked with both adults and adolescents in individual and group therapy, psychosocial rehabilitation and crisis intervention and assessment. Sean’s specialties include personality disorders, depression, anxiety, PTSD, adult and childhood abuse, EMDR therapy and couples work. Applying his considerable experience to young people in an outdoor setting couldn’t be more perfect, in Sean’s opinion. On his first day at SUWS he exuberantly exclaimed, “I’m just supposed to be here!”

Sean had an eye in the sky during his ten years in the US Air Force as an air traffic controller and avionics technician. At ground level he has worked many years in the scouting program and taught hunter and bow hunter education for the Idaho Department of Fish and Game. Sean’s family is his greatest joy in life, and he loves watching his boys play football in the fall. In his leisure time he enjoys many outdoor pursuits including backpacking, camping and fishing.

Jerri Dee Harvey, MA - Field Supervisor
A graduate of Colorado Christian University with a master’s degree in counseling, Jerrie Dee believes that “challenging situations bring to the surface elements of people that nothing else will; it strips them of pretense. People’s lives can be changed when they are in this tender and vulnerable state.”

Jerrie Dee’