Faculty & Staff

At Good Shepherd School, we take pride in our uniquely qualified and experienced faculty, and the dedicated assistance of our staff. Each of our faculty and staff members is a faithful, practicing Catholic and active in one of our local parishes. We are here to serve the needs of each child and family with compassion, understanding, and unwavering support. We have small class sizes and each student receives lessons tailored to his or her own academic level.

Karen Clineff

AS, AMI Certified Primary Teacher



Karen Clineff was raised in Falls Church, VA. She has an AS in Early Childhood Development and AMI certification in ages 3-6 from the Montessori Institute of San Diego. She began her work with Catechesis of the Good Shepherd and has taught in Montessori classrooms for eleven years. Karen and her husband, David, like in Herndon with their miracle baby, Emma Hope, who is also a student at GSS.  Karen has a gift of perceiving and working with each child’s individual challenges and strengths, understanding that children are constantly focused on the simple moments that adults brush past.  She enjoys working with special needs children, since their struggles are greater, and uses the words of Christ as her motto, “Whoever humbles himself like this child is the greatest in the kingdom of Heaven. And whoever receives one child such as this in my name receives me.”

Antonia Babicova

Assistant Primary Teacher


Antonia received a BS in Biology and a BS in Education from Trnava Univeristy. She was a lead teacher of Biology, English and Art in Hanusovce, Slovakia. Antonia recently lived  in Cambridge, England where she worked as a pre-school lead teacher for 2 years. Parishioners of St. Francis de Sales, Antonia now lives in VA with her husband and 8 year old triplets. She enjoys riding bikes, exploring nature, gardening and introducing her children to all the various forms of art.

Doreen Murtagh Wilfong

First Grade Teacher



Doreen graduated from St. Nicholas Montessori College in Dublin, Ireland, where she trained to teach in the Montessori method to ages 2-12. She has also completed CGS Level I training and is a Wilson Reading System specialist. During her over 30 years’ work in Montessori education, Doreen has taught in Ireland, Canada and Virginia; has owned and operated a Montessori school; and has taught all levels from toddler through elementary. Her three children have all attended Montessori schools, and she and her family reside in Frederick County, VA.

Joanna Willard

Lower Elementary Teacher



Joanna and her husband, Glenn, parishioners of St. Francis de Sales, have 12 children and 8 grandchildren. Joanna has homeschooled many grade levels over the years, has taught Sacramental preparation for 25 years, and leads a Level I class at Joyful Child Atrium. Joanna is well versed in the classics and nature study, teaching the Faith in an academic classroom, and says, “I believe that the shaping of the whole person has the potential of bringing good to our families, local community, but ultimately the Church and the world.”

Theresa Bruton

Upper Elementary Teacher



Theresa holds a degree in Elementary Education from the Univ. of St. Thomas in St. Paul, MN and lives in Lovettsville, VA with her husband Robert and children. She has homeschooled her children for the past 21 years, cofounded Joyful Child Atrium in Purcellville, and is currently a Level II/III catechist there. After one year as the upper elementary teacher, she says this about Good Shepherd School. “Truly, this is the best of both worlds; home and school. The small class sizes, the individual attention given to the students, the group discussions, the workings of the classroom community, recess with friends, children helping and teaching each other, the flexibility to dig into a subject when the students want more…it’s fabulous. I love teaching here, and I am so thankful to have this opportunity to work with children in this way.”

Shane Ayers

Middle School Teacher



Shane graduated from Patrick Henry College in 2011 with a degree in Literature, is currently pursuing his Masters Degree in Liberal Arts from St. John’s College in Annapolis, and has taught Grades 6-8 at Ambleside School in Herndon for the past six years. Shane, his wife Teresa, and their four children are parishioners at St. Francis de Sales in Purcellville, VA. Shane is truly a “Renaissance Man”, bringing a depth and variety of of subjects to GSS, including: Literature, History, Grammar, Composition, Poetry, Science, Logic, Introduction to Computer Programming, and Woodworking. Additional, Mr. Ayers has been the director of five Shakespearean productions.

John Siman

Middle School Latin Teacher



John Siman received his M.A. in (Greek and Latin) Classics from The Johns Hopkins University. He did graduate work in English and American literature at the University of North Carolina at Chapel Hill as well. He teaches Latin as a living, spoken language because he believes that a student’s ability to read and enjoy the literature of any language requires an oral foundation. His Latin students consistently do exceptionally well on competitive exams, scoring 5s on the Latin AP, winning cash awards in regional translation contests, earning first-, second-, and third-place awards on the various Classical Association of Virginia exams, and winning gold medals on National Latin Exams.

Tania Hersch

Math Specialist



Tania Hersch has a 11 years of classroom teaching experience in Loudoun and Fairfax County Schools, has served as a mentor to new and in-service teachers, and has worked as a mathematics tutor for students from kindergarten through algebra.  She has experience working with a wide range of abilities and learners, from gifted and talented to students with learning challenges.  She is currently completing her final coursework for a masters in Mathematics Educational Leadership with a K-8 Math Specialist certification from George Mason University.  Tania lives in Round Hill with her husband and four young children, and they are members of St. Francis deSales parish.  In recent years, she began homeschooling her children and was drawn to the ideals and the beauty of a classical Christian education.  Tania is passionate about helping students to not only excel at mathematics but to also develop a sense of wonder and enthusiasm for the subject!

Ron DuBois, PhD

Music Teacher



Dr. Ronald William DuBois Jr. holds a Bachelors in Music from West Virginia University, a Masters in Music Theory from Duquesne University, and a Doctorate in Sacred Music from the Graduate Theological Foundation.  He has taught private piano and classical guitar lessons for nearly 40 years, directed parish music programs, and worked for 30 years as an adjunct professor at Franciscan University, teaching courses in piano, guitar, and Gregorian chant. He also co-founded and directed the Canticle Singers Catholic Youth Choir in Steubenville, Ohio.  Ron recently accepted a position at St. Elizabeth Ann Seton parish in Lake Ridge, VA.  He and his wife Marianne are thrilled to join 3 of their 5 children and all 6 of their grandchildren in Virginia.  Sharing his love of the gift of music has been his life-long passion, and he has always adopted Bach’s motto as his own: “Soli Deo gloria!”

Tricia McKenna

Music Teacher


Katheryn Caro

Director of Admissions



Katheryn was raised in St. Paul, MN. She received a BS in Biology from the University of Dallas, has AMI Montessori training, and has taught high school science courses for the local homeschool community since 2014. She lives in Hamilton with her husband, three children, a small flock of chickens, and an educated cat.  She is excited and honored to be a part of the Good Shepherd School team!

Mattias Caro

Executive Director and Provost



Mattias holds a BA in History from the College of William and Mary, a Masters in Theology from Christendom Graduate School, and a JD from George Mason University. He is the Creative Director and a content contributor at Ethika Politika, is a practicing attorney, and teaches history classes for the Well-Trained Mind Academy. Mattias is our resident Swiss army knife.

Theresa Schlenz




Theresa was born and raised in Steubenville, Ohio. She holds a degree in English Literature and Mental Health and Human Services from Franciscan University of Steubenville. In addition to 5 years of employment at Franciscan’s admissions office, she has worked as a private tutor and in Seton Home Study School’s English department. She is certified in Levels I and II of Catechesis of the Good Shepherd, and has been given the great joy and privilege of serving at Joyful Child Atrium for the past four years. She and her husband Joe homeschooled for 8 years, but now all their school-aged children are attending Good Shepherd School. She believes one of Good Shepherd’s most attractive features is their dedication to provide many of the best aspects of an ideal homeschool education, yet with the added benefit of the structure and community of a traditional school setting. What a gift it is to have a school option that complements, rather than competes with family life!

Anna Curtis

Director of Marketing



Anna received her BFA in Visual Communications from The School of the Visual Arts at Virginia Tech. She has experienced the many shades of the design field, working for everything from non-profit organizations (including The Association Montessori International & Montessori Guide) to Fortune 500 companies. Anna lives in Berryville with her husband Ben and their three sons.

Chris McKenna

President of the Board of Directors



Chris received a BS in Mathematics from Pennsylvania State University and a MTS in Pastoral Theology form from the Institute of Pastoral Theology. He has worked as an actuary for the past 16 years, and after his own “George Bailey” moment, has led Good Shepherd School for the past year, where his  youngest child attends. He and his wife Tricia live outside Leesburg and are parishioners at St. Francis de Sales. Chris is amazed to see what the Lord is building at Good Shepherd School!