A graduate of both Northeast Texas Community College and The University of Texas at Tyler, Professor Yarbrough first joined the department as a part-time faculty member at NTCC in 2016 to teach general biology and anatomy and physiology. She has previously worked as a research assistant for The University of Texas at Tyler Health Science Center, Scott & White, and The University of Texas Southwester Medical Center where her work centered on performing biological assays to determine effectiveness of immunological treatments on pediatric leukemia in vivo and in vitro. Now a full-time faculty member since 2019, she also holds a second master’s degree in Instructional Technology. She is very active in scouting where she has served in multiple positions and has volunteered with Big Brothers/Big Sisters and Patient Pet Therapy with Scott & White Hospital.