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Lisa Heldke teaches in the philosophy department and the gender, women and sexuality studies program, of which she was a founding faculty member. Among her favorite courses to teach are modern philosophy (which, believe it or not, focuses on the eighteenth century); aesthetics; and gender, knowledge and reality. But her real passion is the philosophy of food, which she holds in the teaching kitchen of the Nobel Hall of Science, where students can cook together each week.

The philosophy of food is not only a teaching passion, it has also been a focus of much of her service work on campus. She is the co-founder of the Kitchen Cabinet, an advisory committee to the Gustavus Dining Service that works to enhance the ways it serves the mission of the College. The committee includes representation from all the campus constituencies, including students.

Food is also the focus of Heldke’s scholarly research; she is one of the first contemporary philosophers to treat food as a serious philosophical topic. She is the author or editor of a number of books in the field, including Philosophers at Table: On Food and Being Human; Exotic Appetites: Ruminations of a Food Adventurer; Cooking, Eating Thinking: Transformative Philosophies of Food; and (most recently) Parasitic Personhood and the Ontology of Eating. Her research has led to her being invited to teach each year in a master’s program at the University of Gastronomic Sciences in Pollenzo, Italy, a kind of “liberal arts college of food” founded by the Slow Food founder Carlo Petrini. Her scholarly work has also garnered her awards from the Agriculture, Food and Human Values Society and the John Dewey Society.

For ten years, she served as director of Gustavus’s Nobel Conference, a role she described as being the “chief learner” for this science-and-ethics extravaganza which is a highlight of the Gustavus academic year, and has brought more than 100 Nobel laureates to campus.

Her newest book project bears the working title “Yurtitude is Experience”; it’s a philosophical exploration of her summertime life in a yurt on the coast of Maine where she lives (mostly) off the grid with her Siberian husky, writing, baking bread in a wood-fired brick oven, and kayaking and sailing in Eggemoggin Reach. Winter finds her and her husky skijoring in the Gustavus Arboretum whenever the snow cover allows. 
 

Peg O’Connor is the author of the forthcoming book on addiction and recovery titled, Recovering Character: Knowing How to Belong to Yourself. She is the author of three other books on addiction including Higher and Friendly Powers: Transforming Addiction and Suffering (Wildhouse Publishing, 2022), Life on the Rocks: Finding Meaning in Addiction and Recovery (Central Recovery Press, 2016), and The SoberPhilosopher Workbook for Exploring Addiction and Creating Recovery (Wildhouse Publishing, 2023). 

O’Connor is the author of the popular blog series, Philosophy Stirred, Not Shaken. The title of the series is a wink and nod to martinis. She has written opinion pieces for The New York Times, The Minnesota Star Tribune, USA Today, The Daily Herald, and Dallas Morning Herald. O’Connor has appeared on numerous television, radio, and podcast programs and has been quoted as an expert in publications ranging from The New York Times to Cosmo.

Mr. Tengwall is a visiting professor in the Department of Business & Economics, where he engages students on a range of topics including Management & Leadership, Business Models & Growth Strategy, Sales & Marketing, and Supply Chain/Operations Management. He also serves on the Boards of two companies and provides management consulting services to a range of businesses.

Previously, Mr. Tengwall had a 12-year career with the Marmon Group, a Berkshire Hathaway Company. During this time he was President of EcoWater Systems LLC (2019 – 2024), a leading North American manufacturer and marketer of residential and light commercial water softening and filtration systems. Prior to that, he was president of Marmon Food & Beverage Solutions Group (2013 – 2019), which was comprised of two different businesses, Marmon Link and Marmon Renew. Marmon Link (previous dba 3Wire Group Inc) is a provider of parts, training and service for foodservice and beverage dispensing equipment. Marmon Renew is a re-manufacturer of commercial beverage dispensing and related foodservice equipment.

Prior to his executive leadership roles with Marmon/Berkshire Hathaway, he had a 17-year career with Ecolab (NYSE: ECL). There he held several progressively more responsible leadership roles in the Institutional and Food & Beverage operating divisions. He led the marketing function for both business segments and engaged in multiple acquisitions as part of the overall business growth strategy.

Mr. Tengwall began his career as a microbiologist in the Sterilization Technology & Process Control Validation group at The Upjohn Company (now Pfizer). He then pivoted into marketing and business development roles with IMI Cornelius Inc., a subsidiary (at the time) of IMI plc.

Aaron was born and raised in St. Charles Minnesota, a small town between Winona and Rochester. He attended St. Mary's University in Winona Minnesota where he met his wife, Amanda. After St. Mary's he took some time off before enrolling in classes at the University of Minnesota. Aaron began working at Gustavus in 2007.

He has three children and enjoys listening to baseball games, reading a books, riding bike, putting puzzles together, and coaching soccer.

Since 2003, Kiki Harbitz has taught courses in the department of Biology, as well as the department of Health and Exercise Science. She specializes in anatomy and physiology, evolutionary biology, and animal behavior. She enjoys teaching students about their own bodies and helping them build upon the skills necessary to advocate for themselves and others in medical settings and situations. She spends her free time with family and friends, with pets (and foster dogs), gardening/landscaping, making art, being active, storm chasing, doing photography, and enjoying nature.

Dr. Jeff Ford has been a visiting assistant professor of mathematics at Gustavus since 2016. He has taught almost every mathematics course offered at Gustavus. His research is in topology, dynamical systems, and mathematics education. Dr. Ford has supervised three honors theses, two interdisciplinary research projects, and six independent studies. He has co-authored two books in dynamical systems and one in linear algebra. He is committed to providing open access educational materials to students and encouraging teachers to use active and inclusive pedagogy. To that end, he has presented more than 20 times at conferences on active learning and alternative grading. 

Lisa "LD" Dembouski, Ph.D., has been a mental health worker, Peace Corps Volunteer, and wilderness survival counselor before beginning work in her true passion and profession: education. She taught for 15 years in public K-12 schools before finding her next true love in teacher preparation at Gustavus, where she instructs a variety of courses and supervises teacher candidates in field placements. LD also devotes a great deal of her time and energy supporting Global Educators, a highly unique opportunity for Gusties to complete part of their student teaching semester in "away" destinations.

Kate Aguilar is an active part of the History Department (assistant professor of African American and Sport History); Gender, Women, and Sexuality Studies; African/African Diaspora Studies; and Sport Management. She challenges students to consider not only what Black history is, but what it does in the world. Her public scholarship includes contributions to the Washington Post and TIME magazine, and she is the Film, Media, and Museum Reviews section editor for the Journal of Sport History. Her current book expands an understanding of the revolt of the black athlete into the 1980s. She is also a part of a broader community of scholars working on campus to learn more about, implement, and assess inclusive teaching pedagogies. 

Dr. Annalise Rivas teaches all levels of Russian language at Gustavus, as well as contributing to the Eastern European & Eurasian Studies and Comparative Literature programs through courses on Eurasian culture, film, media, and literature. Her scholarly interests focus on pedagogical practices in the teaching of foreign languages, particularly the use of authentic literary texts in building language proficiency. In addition to language pedagogy, Annalise recently focused her scholarly efforts on diversifying and amplifying the voices of Russian speakers from outside of the Russian Federation, including receiving a fellowship to spend time in Central Asia learning more about variations in Russian language use. Prior to arriving at Gustavus, Annalise lived and worked in several different countries, sparking a curiosity and love of travel that she strives to share with students through telling stories, cooking regional foods, and encouraging international experiences. 

Dr. Glenn Kranking is a historian of Scandinavia, the Baltic States, Russia, and Eastern Europe. He has lived, studied, and researched extensively in Sweden, Estonia, Finland, Denmark, and Russia. In addition to his regular rotation of courses, Glenn has also taught courses on Nordic explorers, disaster films, and movie musicals. Glenn is currently working on a book manuscript about the Swedish minority population in Estonia during the Second World War as the region passed from independent to occupations by the Soviet Union and Nazi Germany; during that time frame, the majority of the Swedish population fled to Sweden as wartime refugees. He also researches and teaches on propaganda, with a recent interest in political stickers as urban propaganda. During summer months, he routinely works as an expert lecturer with Smithsonian Journeys on tours through Scandinavia, around the Baltic and North Seas, and the Rhine River Valley.

Emma Brunton ’19 is an instructor in the Health and Exercise Science Department. She recently returned to her alma mater after receiving her master's in Community Health Education from Minnesota State University, Mankato. Her professional expertise centers on preparing future health and physical education teachers and coaches through evidence-based, purpose-driven practices. Currently, her work focuses on athlete development, leadership training, and incorporating mental health and functional movement into sport. She has led important cross-divisional service initiatives, including the Mental Health Club and Hope Squad, to promote student well-being and support. Brunton received the Golden Apple Award in 2021 and the Section 1A Assistant Coach of the Year award in 2021 and 2025. Outside of academic work, she enjoys weight lifting, painting, reading, and spending time with her husband, family, friends, and dog.

Mary R. McHugh is a Professor in the Department of Greek, Latin, and Classical Studies. She is a social historian whose wide-ranging scholarship encompasses political history, intellectual and cultural cross-pollination, and the history of food production and culture. A recently published chapter examines how Plato’s Timaeus shaped conceptions of time and cosmology within the intellectual milieu of Western Greece. McHugh argues that its call for cosmological models influenced a tradition of mathematical and mechanical innovation, from Archimedes’ devices to medieval and Renaissance astronomical clocks.
McHugh is adept at pursuing leads and situating the particular within its broader context. She has taught courses at all levels of Greek and Latin to those spanning Near Eastern and Greco-Roman history to Chinese and Islamic cultural exchanges with the West. She also teaches courses in art and archaeology, bringing her expertise in material culture directly into her research.