Directory

Dr. Andrea Hamilton has been a member of the St. Mark’s community since 2019 and is a faculty member in the Department of History and Social Sciences. She teaches courses in history of American society, foundations of world societies and AP U.S. history. A mom to Miller Wendorf ‘24, she earned a doctorate from Tulane University and holds undergraduate degrees from Indiana University and Southern Methodist University. Prior to St. Mark’s she taught a variety of history and English classes at Southern Methodist University. Hamilton sponsors the St. Mark’s chapter of Junior World Affairs Council and travels with the School’s Model United Nations team.

Cameron Hillier ’13 returned to his alma mater in 2020 as a member of the English Department, where he teaches classes in junior English, literature of war and survival and dystopian literature. Before returning to St. Mark’s, he earned a bachelor’s degree from Colby College. Hillier is the head tennis coach here, directs the School’s Wilderness Program and serves as an adviser in the freshman-sophomore class rotation. He also taught English at Christ School in Asheville, NC while coaching tennis and serving as head of house for one of the campus dormitories there.

Matt Hjertstedt has been a member of the St. Mark’s community since 2008 and serves as head athletic trainer in the Athletic Department, where he also teaches Middle School physical education and health classes. He earned his Bachelor of Science degree from Central Washington University and Master of Science degree from Texas Tech University Health Sciences Center. He’s also a certified athletic trainer and a licensed athletic trainer. Before joining St. Mark’s, Hjertstedt worked in the fitness industry as a personal trainer and strength coach. A dad to current Marksman Westin ‘31, he also spent time working at Harborview Medical Center in Seattle in the Acute Rehab Unit. Hjertstedt also sponsors an independent studies course in sports medicine for Upper School students and received the John H. Murrell Excellence in Teaching Award in 2014.

Ken Howell started his St. Mark’s career in 2023 as a member of the Mathematics Department, where he teaches courses in algebra and precalculus to students in the Upper School. He earned a Bachelor of Science degree from Lees McRae College and a master’s degree in teaching mathematics from University of Texas at Dallas. Before coming to St. Mark’s, Howell taught mathematics at Jesuit Preparatory School where he was an assistant coach for the varsity lacrosse team and the head coach for the bowling team.