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As a Professor in the Department of Environment, Geography, and Earth Sciences (EGE), Julie K. Bartley teaches courses in the Geology and Environmental Studies programs. With a background in chemistry and geology, Professor Bartley brings an interdisciplinary perspective to the study of the Earth’s past and present. As a teacher, she strives to know her students as individuals and to inspire interest in the Earth’s past and care for its future. She has also held significant leadership roles at Gustavus, including serving as chair of EGE, as the project director for the Inclusive Excellence Project, and as Associate Provost and Dean of Sciences and Education.

Professor Bartley’s expertise lies in interpreting ancient environments, with a particular focus on the Precambrian. Her research explores how microbial communities shaped and were shaped by the environments in which they lived. She and her students study the fossil record and the chemical signatures left by life hundreds of millions or even billions of years ago. At Gustavus, she actively involves students in this discovery process, supervising numerous undergraduate research projects that range from evaluating stromatolites in Minnesota to analyzing the Martian surface signs of habitability.

Students who collaborate with Professor Bartley might conduct fieldwork, perform laboratory analyses, analyze imagery, work with databases, or some combination of these. In the classroom, Professor Bartley teaches a wide array of courses taken by students across campus. Her teaching philosophy is characterized by a commitment to effective and inclusive instruction and a firm belief that every student is equipped to succeed. Whether a geology major, a general education student, or a first-semester Gustie, students can expect to take an active role in class, have many opportunities for hands-on experiences, and be challenged to grow as they learn. 

Beyond her teaching and research, Professor Bartley serves Gustavus and the broader scientific community in many ways. She recently served as the Faculty Shepherd for the Nobel Hall of Science renovation and addition project and has co-chaired the Nobel Conference. She is a trained facilitator for two national programs: the ADVANCEGeo Partnership, which aims to improve workplace climate in the geosciences, and the Traveling Workshop Program, whose workshops help strengthen geoscience departments.

As the curator of the Chester Johnson Geology Museum, Professor Bartley regularly shares her passion for geology with K-12 students and the public. Whether leading fossil collecting field trips or presenting to local community organizations, she enjoys helping others see the landscape as a "time machine." Her dedication to service was recently honored with the Gustavus Faculty Service Award.

Outside of her professional life, she has served as the chair of a local charter school board and remains an active member of several professional societies, including the Geological Society of America, the National Association of Geoscience Teachers, and the Association of Women Geoscientists.

Dr. Justin Knoepfel, recipient of the Dr. Carlo A. Sperati Award, joined the Gustavus faculty in 2009. He currently serves as the Chair of the Department of Music, conductor of the Gustavus Symphony Orchestra (GSO), and instructor of viola. Transitioning from a career as a professional string player to the podium, Dr. Knoepfel brings a deep understanding of technical complexity and expressive nuance to his conducting, providing a rigorous yet engaging experience for his ensembles.

Beyond campus, Dr. Knoepfel is a highly sought-after clinician, guest conductor, and adjudicator. He recently served as the guest festival conductor for the Dorian Orchestra Festival. Under his leadership, the Gustavus Symphony Orchestra maintains a robust performance schedule—including high-profile events like Christmas in Christ Chapel and the Nobel Conference—and tours annually. The GSO embarks on international tours every four years, with the most recent journey to Ireland and Scotland.

As an accomplished violist, Dr. Knoepfel’s performance credits include the Minnesota Orchestra, Minnesota Opera, and the South Dakota, Mankato, and La Crosse Symphony Orchestras. His artistry has taken him across the United States and Europe, performing at prestigious venues. He frequently collaborates with members of the Minnesota Orchestra and the Saint Paul Chamber Orchestra. A dedicated educator, he has served on the faculty for programs such as the Lutheran Summer Music Academy, MNSOTA Summer String Camp, and the International Viola Congress. His freelance career is equally diverse, ranging from sharing the stage with legends like The Eagles and Idina Menzel to performing privately for King Carl XVI Gustaf and Queen Silvia of Sweden.

Dr. Knoepfel resides with his wife, Elisa, and their five children. The household is completed by Regan, a Bernedoodle, and Avery, a Ragdoll cat. Above all his professional achievements, family remains the center of his life.