William Loss - Principal

William (Bill) Loss is in his 25th year as an educator. He earned his Bachelor of Science degree in Secondary Education from the University of Wisconsin-La Crosse in 1991 and spent the next fourteen years as science teacher and soccer coach with the D.C. Everest School District and School District of McFarland. In 2007, Bill earned his Master of Arts degree from Edgewood College in Educational Administration, and continued his studies at Edgewood to receive superintendent licensure in 2010.

Bill  has a variety of administrative experience, including serving as athletic director at Beaver Dam High School from 2007-09 and assistant principal at Baraboo High School from 2009-10. In 2010, he was named principal at Baraboo High School, a position he held until 2013. From 2013-15, Bill served as principal at Kewaskum High School. Bill is in his third year as principal at WHS.  He views Watertown as his destination district and is proud to serve the students and learning community at WHS.

Bill has five children: Madeline, Ian, Donovan and twin girls - Elsa and Bella. When not committed to professional pursuits or spending time with family, Bill enjoys running, working out, serving as a soccer referee, coaching Donovan's soccer team, golfing, house projects, and spending time on the lake at the family cabin.

Josh Kerr - Associate Principal

Jamie Koepp - Associate Principal/Athletic Director/Summer School Coordinator

Jamie Koepp is entering his 22^nd year in education. He came to Watertown in the fall of 2005 as a school counselor and head basketball coach for the Goslings. The Milwaukee native has been a middle and high school teacher as well as a school counselor in MPS prior to coming to Watertown.

Jamie prides himself as a life-long learner as evident by his continued education. He earned his Bachelor’s Degree from Concordia University of Wisconsin in Liberal Arts followed by receiving his State of Wisconsin teaching license from Alverno College as a graduate student. He received a Master’s Degree from Marquette University in Educational Policy and Leadership. Jamie received two Post Master’s degrees, the first being a School Counselor Certification from University of Wisconsin-Milwaukee and secondly, a School Administration certification from Marquette University.

He has embraced living in the Watertown community and looks forward to continuing to work with the many talented students and exceptional staff. Jamie enjoys watching and playing sports along with reading when time permits. Jamie has two adult children and is proud to call Watertown his home.

Jessica Scherer - Associate Principal

Jessica Scherer is the newest addition to the Watertown High School administrative team. She comes to us from Kettle Moraine High School where she served as a Special Education teacher, Lead Teacher of Literacy, and Instructional Coach over the last 7 years. Before joining the team at Kettle Moraine, Jessica spent 11 years as a Special Education and Reading teacher in the School District of Cudahy. Jessica is a passionate advocate for students, disciplinary literacy and student-centered learning opportunities.

Jessica earned her Bachelor of Science in Education from the University of Wisconsin-Madison in 2000, and immediately began her career as a Special Education teacher in the School District of Cudahy. In 2006, she earned a Masters degree in Special Education from University of Wisconsin-Milwaukee. When she realized that most of her students were reading far below grade level, she pursued a Reading certification from Concordia University, graduating in 2010. She was then able to assist in the development of RTI structures to support students and help teachers use literacy strategies in all classrooms. Jessica earned her Masters in Educational Leadership from American College of Education in 2016.

Jessica lives with her husband and two children, Jacob (14) and Jilly (6). She also enjoys reading, boating, traveling to the Northwoods, and is an avid hockey mom.