Faculty and Staff
Harrison Brehm
Headmaster
Harrison Brehm is a native of New Orleans, Louisiana. He graduated from Christendom College with a B.A. in history and the American College of Education with a M.Ed. in Educational Leadership. He has dedicated twenty years to Catholic education in both the elementary and high school levels. He has taught all manner of subjects, including religion, psychology, and history, as well as English and math for standardized test preparation. He has served as a department chair and administrator at St. Mary's High School, and as principal of St. Luke Catholic Elementary School, both in Stockton. In his spare time, he enjoys reading and discussing literature, playing games and puzzles, and exploring more of the beauty and history of California all with his wife and four children.
Cristina Acosta
Development Director
Cristina Acosta was raised in Sacramento and graduated from St. Francis High School. She holds a Master’s degree in Public Policy and Administration from CSU Sacramento and Bachelor of Arts degrees in English and Italian from the University of California, Davis.
Mrs. Acosta is a founding parent and board member who organized early school recruitment, led fundraising efforts, and developed marketing communications. She is passionate about sharing the school’s mission with all who are seeking a joyfully Catholic education for their children.
Sarah Holowecky
School Administrator/Office Manager
Sarah Holowecky earned a BS in Biology from the University of San Francisco, as well as a certificate from the St. Ignatius Institute’s Great Books Program. She taught junior high at Holy Spirit School, and has several years of administrative assistant experience. Keith and Sarah have been married for sixteen years and have five children. Catholic education, and its role in forming future saints, is an important part of their vocation as a family. She is a founding board member and an active parishioner at Presentation Church.
Teresa Eggers
Drama, Social Dance
Mrs. Teresa Eggers holds bachelors degrees in music and theatre arts, both from Benedictine College, and has a professional conservatory certificate from the Los Angeles branch of Stella Adler Acting Studios. She has worked in education since 2016, including for Kolbe Academy Homeschool and at St. Monica Academy in Southern California.
While living in the Los Angeles area, Mrs. Eggers developed a passion for social dancing. She used her background in ballet, jazz, tap, and musical theatre to learn several styles of swing at some of the world-famous swing dances and conventions in the area.
She and her husband, John, had the lack of foresight to plan a big wedding for the spring of 2020, but following their tiny wedding they moved to the Sacramento area. They have one rambunctious toddler.
John S. Hamlon
Theology
Mr. Hamlon has an MA in Theology from the University of San Francisco (USF) and did doctoral work in Theology at the Graduate Theological Union, Berkeley. From 1994 to 2001, he was the associate director of the St. Ignatius Institute at USF. From 2006 to 2011, he taught and administered at the University of Sacramento. Among the courses he taught were “Introduction to the Catechism of the Catholic Church,” “Christian Ethics,” and “The Philosophy & Theology of Marriage & Family.”
Mr. Hamlon has directed national and international conferences on marriage and family at St. John’s University, Collegeville, MN, and also directed the marriage prep program for the Diocese of St. Cloud, MN. He is the author of A Call to Families: A Commentary and Study Guide for Familiaris Consortio.
Presently he teaches classes in philosophy, theology, and Christian literature at Easter’s Faith Formation Center in Citrus Heights, CA.
Jeffrey Healey
Humanities
Jeffrey Healey is originally a native of the Napa Valley where he attended Kolbe Academy and graduated valedictorian of his class from Trinity Prep. He attended Thomas Aquinas College (Massachusetts), where he earned a bachelor degree in the Liberal Arts. Throughout college, Jeffrey’s greatest loves were theology, mathematics, and his future wife (Cecilia). After graduation, the Healeys moved to Wisconsin where they welcomed a particularly joyful baby boy, Pio Benedict. They recently returned to the Golden State and currently reside on the (Huckins') family ranch. Jeffrey is eager to begin a new chapter in his life, and he looks forward to sharing with his students his love of wisdom, adventure, and beauty.
Manuel Jaime, Jr.
Latin, Humanities
Mr. Jaime graduated from Palma High School in Salinas, California and then from Santa Clara University with a BA in Classics. He has a teaching credential in Latin, Spanish, Social Studies, and English. Before coming to Chesterton, he taught Latin and World History at Orion Academy in Concord, California where he worked since 2010.Mr. Jaime enjoys traveling (he has been to Italy three times), reading history, and learning languages.
Jane Lee
Math
Holding a Bachelor's Degree in Aerospace Engineering from California State Polytechnic University, Pomona, Jane also used her time in college to found the first Ultralight Symposium in the LA region and participate in student-research on in-ground effects for V/STOL aircraft. Working on the early design phase of the B-2 Spirit Stealth Bomber (Static Loads; Weapon Systems - nuclear gust loads; and computer simulation), supporting God's design of parents as His heart and hands as a monthly guest on the Bishop's Hour with Bob Dunning for 14 years, giving parish retreats for mothers (Keeping the Holidays Holy; Invisible Altars; Helping Your Kids Connect to the Mass) and helping kindergarten to pre-Calc students bridge the abyss of math for 28 years, the largest contribution Jane feels she has made is in her work as a mother.
Peter Mendenhall
Chemistry
A native of Fair Oaks, California, Mr. Mendenhall earned a BS degree in Chemistry from UC Davis and worked for 43 years in the chemical industry. His assignments included chemical lab process research, analytical lab management, Mini-Plant operations, industrial hygiene and safety management for three chemical production plants, and safety management for pharmaceutical and biopesticide research companies.
Currently an active parishioner at Presentation Church in Sacramento, he has skillfully served in several leadership roles within the Knights of Columbus and is dedicated to the pro-life movement. He is a lifelong learner and celebrates life surrounded by his wife of 51 years, three grown daughters, and 11 grandchildren.
Greta Munsill
Literature, History
Greta Munsill received her AB from Stanford University, where she completed coursework in the liberal arts as part of Stanford’s then-required core curriculum in Western Civilization. She received her JD from the University of Pacific, McGeorge School of Law. After practicing law for a few years, her life’s work shifted from law to education. For 28 years, she homeschooled her 9 children, using mainly a classical education approach. For 15 years of that time, she led a monthly discussion group for high school students, which included great books, essays, plays, epic poems, the U.S. Constitution, and important U.S. Supreme Court decisions. She also taught CCD for many years and a class in Rhetoric and Debate.
Mrs. Munsill wears many hats. For over 16 years, she has arranged altar flowers for her parish. When not reading, she enjoys tending vegetables and chasing chickens on her urban farm. Most of all, she treasures the many adventures, museum trips, crafts and books that she shares with her grandchildren (10 at last count).
Patrick Murray
Literature, Philosophy, Theology, Music, Choir
Mr. Patrick Murray graduated from CSU Sacramento in 2019, with a degree in Music Education. In 2020 he obtained a teaching credential and has taught band, choir, and piano for three years in a public middle school. Mr. Murray was a member of the Schola Cantorum at Sacred Heart Church, and has sung intermittently with St. Mary's Cathedral in San Francisco. He currently sings and plays trumpet in a successful jazz band.
Bridget Stoutz
Humanities
Bridget Stoutz grew up in the vibrant Catholic community of Steubenville, Ohio. After six months as an au pair in France, she earned her B.A. in Liberal Arts from Thomas Aquinas College in Massachusetts. She makes time for ballroom dance, hikes, and sacred music. She enjoys learning about everything and sharing her liberal education with her students.