Our Teachers


Kathleen Abela

Kathleen Abela is a mother of six children and holds a B.A. in Liberal Arts from Thomas Aquinas College and has as M.A. in Theology from The Augustine Institute. She has taught the faith in a variety of contexts including independent Catholic High School, RCIA, CCD, and home school. Kathleen is excited to be teaching the Scripture course as she thinks that a mind formed by a rich understanding of Salvation History serves as the fertile soil for all further catechesis. 

Barbara Carrescia

Following graduation from Thomas Aquinas College, Barbara taught for several years in both elementary and high school in Southern California and then in Kansas. After moving to the DC area, before getting married, Barbara worked at the John Paul II Institute for Studies on Marriage and Family as Assistant to the Dean. She and her husband Phil moved to Ashburn in 1994 to raise their family and have been members of St. Theresa Parish ever since. Barbara homeschooled her four children using Mother of Divine Grace School up until last year when her youngest entered college.

Mike Caslin

Mike brings a wide range of experiences to his Mathematics instruction. He has a B.S. in Industrial Engineering from Virginia Tech and an M.S. in Systems Management from Colorado Tech. He embarked on a 20+ year career in telecommunications and defense contracting before switching careers to the wonderful world of education. Since 2006, Mike has taught high school Math in Loudoun County as a full-time classroom teacher, a homebound/home-based instructor, and as private math tutor. He currently has an active post-graduate professional teaching license in the State of Virginia with an endorsement in Mathematics.

Jeannie DeLisi

Jeannie DeLisi brings teaching experience from many “worlds”: both corporate and academic, in both Catholic and public schools in the secondary and collegiate level. 

Mrs. DeLisi is a graduate of Virginia Tech with a B.A. in Music/Voice Performance and an M.A. in English (“with distinction”). After teaching College Composition at Virginia Tech for two years, she moved back “north” to begin her career as a corporate trainer while still teaching College Composition at NOVA. She eventually started a successful business as an Educational Consultant, in order to be a work-at-home mom. Once her son was school aged, she obtained her state teaching certification. 

An original parishioner of Our Lady of Hope, Mrs. DeLisi was also one of the original faculty members of OLOH School and taught there for ten years. She pioneered a middle school Humanities program that combined English, Geography, and History. Known for her fun and engaging teaching style, she combines an “old school” approach to grammar with the best practices of 21st century pedagogy, always solidly Catholic. 

She has been married for 28 years to Rick and has one son Chris, who was in the first graduating class of OLOH. In her spare time, she cantors the 5:00 and 12:15 masses and performs with local community theatre groups, most recently as “Mrs. Potts” in Beauty and the Beast. 

Jocelyn Halisky

Jocelyn has been an avid Latin enthusiast since she began studying at the age of seven.  Homeschooled through all grades, Jocelyn learned to speak Latin from an early age from her father, also a Latin enthusiast and co-founder of The Family of St. Jerome, a canonical society dedicated to promoting the living Latin language of the Church.  Starting from the age of 12, Jocelyn has attended a week-long Latin immersion lead by the Family of St. Jerome every Summer in which participants pray, learn, and converse together only in Latin.  Jocelyn has been assisting with these programs for many years and now leads a class for beginners.  She has a passion for teaching and being able to help others learn Latin as a living language.  In her free time, she enjoys playing tennis and volleyball, volunteering, and spending time with family and friends.

Hannah Kelly

Hannah Kelly is a graduate of Christendom College (2009) with a major in History and a minor in Theology.  She took Spanish in high school and college, and has spent nine years working in Hispanic ministry, as well as living in Mexico for two years.

The class will focus on grammar, spoken and written use, context and cultural background.


Susan Lindner

A mother of five, Mrs. Lindner has homeschooled since 1993. She has taught high school and middle school Chemistry and Biology to the homeschool community since 2006. She is a graduate of Georgetown University, and a member of St. Mark Church in Vienna.  

Paul Long

Paul Long is an Ave Maria University graduate with a B.A. in Environmental Science. Environmental and Earth Science are a passion for Paul, and he is very much looking forward to teaching it in the coming year to the students of Saint Sebastian Academy!

Jill Matz

Mrs. Matz graduated summa cum laude from the University of New Hampshire in 1981 with a BA in English Literature. She went on to teach two semesters of Freshman composition and complete six courses toward the MA in English. At UNH she met her husband Steve, a recent convert to Catholicism, who introduced her to the truth and beauty of the Faith. She homeschooled her seven children for more than fifteen years, using Mother of Divine Grace for most subjects. The Matzes have lived in Virginia since 2004 and have been active members at St. Mary Mother of God Catholic Church in DC since then.

Anna Mosteller

Anna Mosteller was born and raised in Northern Virginia. She received her Bachelor's degree in elementary education from Messiah College, and afterward, taught Pre-K for three years at Leesburg Christian School (LCS.)  While at LCS, she also had the opportunity to teach high school math to foreign exchange students.  Anna enjoys traveling and has taken multiple trips overseas touring foreign countries.  She loves volleyball and basketball where she played and later coached during her time at LCS, as both a student and teacher.  She is really looking forward to working with the students of SSA and teaching them Geometry!

Pamela Skojec

Mrs. Pamela Skojec is from upstate NY, moved here fifteen years ago with her husband, Lou, and is a mother of six grown children. She has been teaching art for eleven years at Our Lady of Hope School, as well as several homeschool groups. She has taught religious education for thirty years and home-schooled her own children for twelve years.  Mrs. Skojec enjoys reading, drawing, sewing, photography, laughing, volleyball, and playing with her grandchildren.

Tim Halisky

Tim Halisky is a successful entrepreneur who has taken a number of businesses from start-up to multi-million dollar revenues over the course of the past 15 years.  He is passionate about Catholic education and currently serves as a trustee of his alma mater Christendom College. He has given a number of talks on the topic of the role of Catholics in the business world.  Tim is excited to bring his knowledge of business and start-ups to the students of Saint Sebastian's in an effort to inspire more young Catholics to be entrepreneurs.  Tim lives with his wife and 8 children in Sterling, Virginia.  


Archelle Skuce

Student and teacher! She never stops learning! Mrs. Skuce has a Bachelor of Arts degree in art from Oklahoma City University. Using her art background and love for theater, she has worked over the years with numerous community groups from puppet theater to opera. As an actor over the last 7 years here in Loudoun County, she has worked with Loudoun Lyric Opera Co., Sterling Playmakers, Run Rabbit Run Theater, Riverbend Opera, and the Pickwick Players in shows like “Amahl & the Night Visitors,” “Hello Dolly,” and “Little Women.” As a teacher, she never stops her continuing education. She takes community classes, reads constantly, and teaches history at a local homeschool co-op. There’s nothing like telling a good story! She is excited to work with high schoolers at St. Sebastian Academy do just that!

Marion Smedberg

Marion Smedberg is the mother of seven children, all of whom she homeschooled most of the time. Thirty years ago she decided that her kids needed to be truly challenged as homeschoolers, so she decided to teach them Latin and sentence diagramming (among all the other things!). She has been teaching Latin for for 30 years to her own children, and for over 25 years to young and not-so-young students from outside her family.

She returned to college in 2010 and graduated summa cum laude from George Mason University with a degree in English with a focus in World Literature, and minors in Latin and Linguistics.
Marion sang at Latin Masses for over 25 years, and she wrote and published Understanding the Latin Mass and Understanding the Latin Prayers of the Rosary.Since 1996, she has had over 275 students participate in the National Latin Exam with 96% of those students receiving achievement awards. She loves Latin and her students!

Jennifer Sypal

Jennifer Sypal is a mother of six and graduated magna cum laude from American University with a B.A. in International Relations and Economics.  She holds masters degrees in Business Administration from the Wharton School and International Studies from the University of Pennsylvania.  Previously, she worked for several years in business consulting with Andersen Consulting (now Accenture) and PRTM (now part of PwC).   She has taught a middle school history class for homeschoolers for the last three years.  She has a passion for history and education and is looking forward to teaching American History at Saint Sebastian Academy.

Tom Williams

Mr. Williams graduated from the University of Virginia (2011) with a BA in mathematics, a minor in physics, and Phi Beta Kappa membership.  He also graduated from Thomas Jefferson High School for Science and Technology (2008).  He has done math and physics tutoring for tutor.com, translation from Chinese, and professional music composition/arrangement.  He writes prose when he can.  He is an Eagle Scout.

Christine Wilson

Christine Wilson is a homeschooling mother of six and retired pediatrician. She received her undergraduate degree in English with a concentration in British Literature at Salisbury State University, where she also worked for 3-1/2 years in the school’s writing center. After being employed as a copy editor for 3 years, she returned to school for 2 years of math/science post-baccalaureate work at UMD to switch gears and move into medicine. She attended the Medical University of South Carolina and completed her residency in Pediatrics. Family won over career, and Christine retired to stay home full time with her children, where she has been homeschooling the last 11 years. This will be her first endeavor teaching, and she looks forward to passing on the love of learning to her students. Christine has been an active Catholic at St. Theresa parish and the Catholic community for the last 20 years. 

Connie Woods

Connie Woods has a Ph.D. in Russian language and literature from Indiana University. She later studied at the Notre Dame Graduate School of Christendom College and received a Master’s degree in Theological Studies. She has published  in The Catholic Faith (now out of business), Communio, and Logos journals. She hopes to be able to pass some of the beauty and truth of our Faith to a younger generation.