Faculty and Staff

Chesterton Academy of Milwaukee Faculty 2016/17

Dr. Errin Clark – Headmaster and Humanities TeacherDr Errin Clark

Dr. Clark comes to us from St. Louis University where he received his doctorate in Philosophy under the mentorship of world-renowned St. Thomas Aquinas scholar, Dr. Eleonore Stump. He specializes in St. Thomas’s thought on the nature of God, fundamental metaphysics, and philosophical anthropology. His publications include a chapter in an academic book and articles in peer-reviewed philosophy journals, and he has been teaching at St. Louis University since 2010, giving courses in Introduction to Philosophy, Ethics, Medical Ethics, and Philosophy of the Human Person. Dr. Clark holds additional degrees in Philosophy of Religion and Ethics, and in Creative Arts, ideal credentials for leading students in the pursuit of the true, the good, and the beautiful as both headmaster and teacher!


Mary Ann Berry – Office Administrator and Writing Specialist

Mrs. Berry has a Bachelor of Art degree in English and Professional Writing and a Master of Art degree in English and Creative Writing, both from Mary-Ann-BerryMount Mary University.  She has more than 12 years’ experience in proposal writing and technical communications, with most of those years at a local Fortune 500 company.  She also has experience as a writing tutor in the school setting.  She is an expert level writer and editor, has advanced research and computer skills, and will be a great asset to Chesterton Academy.


Patricia Slavinsky – Math and Science Teacher

Mrs. Slavinsky has her Bachelor degree in Chemistry from Knox CollDSCN0177ege and has taught middle school and high school Math, Biology, Chemistry and even some Shakespeare, Latin, Mythology, and high school literature and composition.  She has been an information system analyst responsible for designing, implementing and converting financial and statistical systems. She is passionate about education and was Math teacher and Dean of Academics at Aquinas Academy before coming to Chesterton Academy.

Christopher Berry – Choir and Music Theory Teacher

Mr. Berry has his Master of Music Degree in Organ Performance from the University of Kansas and a Diplome du Premier Prix from the Conservatoire National de Region Rueil-Malmaison, France. He is the Music Director & Organist at the Basilica of St. Josaphat in Milwaukee. Amongunnamed his vast experience, he has also been Director of Liturgical Music at the Pontifical North American College in Vatican City. He has won numerous awards for his organ playing and has made two commercial recordings as a choral conductor. He was Adjunct Faculty in the Choral Department of Cardinal Stritch University during the 2015-2016 academic year.

Matthew Ventura – Drama and Debate Teacher

Mr. Ventura received his Bachelor of Art degree in the Humanities, with an emphasis on performance, from New York University and a Master of venturaFine Art degree in Acting from the University of Tennessee, Knoxville.  He has extensive performance experience, and has been teaching undergraduate and graduate level courses of the Alexander Technique and the Performer at the University of Wisconsin, Milwaukee since 2011 in the Peck School of the Arts,working with dancers, actors, singers and musicians.

Samantha Marugg – Literature and History Teacher

Mrs. Marugg has a Bachelor of Art degree in English, with a minor in Secondary Education from Mount St. Mary’s University in Emmitsburg, MD. Samantha Marugg photoShe has experience teaching Literature, Classics, History, and Religion courses.  She also worked for four years as a Columnist and Editor for the Emmitsburg News-Journal.  She enjoys field hockey and has been coaching two teams over the past four years.

Geoffrey Butz -Art and Art History Teacher

Mr. Butz has a B.F.A. in Illustration from Art Center College of Design in Pasadena, CA. Not only does he have butzexperience teaching, ranging from young children to adults, but he is also an artist & freelance graphic/web designer with over 25 years of experience. He has worked with apostolates such as EWTN, St. Joseph Communications, Lighthouse Catholic Media Inc., Catholic Book Publishing Corp, and others. He has participated in various art shows, both juried and solo exhibitions, and we are blessed to have him share his talents with our Chesterton Academy students.

Debbie Branecky – Director of Admissions and College Advising

Mrs. Branecky has a Bachelor of Science degree in Finance and Business Economics from the University of Southern California and an MBA from Pepperdine University.  She has done consulting work in the retirement benefits and financial sectors and pro bono work in schools, as well as for individuals seeking to maximize their financial aid eligibility in the college application process.  Mrs. Branecky is very detail oriented and organized, critical qualities for a college advisor.  She has set up computer programs for Chesterton Academy’s admissions process, grading systems and college navigation program.  Mrs. Branecky will be conducting college information nights and be available for individual appointments throughout all four years of high school to help students and parents discern the right college or vocational path for their unique circumstances.

Rose Moter – Marketing and Development

Ms. Moter has a Bachelor of Arts degree in Professional Communication from Alverno College and an Associate of Arts degree in Psychology. She has done a variety of work with disadvantaged children and teens in foster care and behavioral health treatment centers. Before coming to Chesterton Academy, she worked as an operations manager for SBH Logistics in Waukesha while doing freelance graphic design and photography projects on the side. Ms. Moter is passionate about quality education and Catholic family culture, and she is very happy to be part of an organization that promotes those values