Lisa Kostur joined RL in 2024 as a member of the Modern Languages and Arts departments as well as RL’s Director of Travel. She teaches French and Class VI Dance, and is choreographer for the Drama Program. She is also a member of the Admissions Committee. She has spent the last several years as a teaching fellow at Harvard in the Department of Romance Languages and Literatures. Prior to this, she was a professional dancer for ten years, performing in over 200 shows throughout Europe. Lisa holds a B.A. in French from Barnard College, a Diplôme d’état in dance pedagogy from the French Ministry of Culture, and an M.A. in French literature from Harvard, where she is currently completing her Ph.D.

John Lieb began teaching at RL in 1998, and today he serves as Chair of the Mathematics Department. He is a member of the Admissions Committee and coaches Varsity and Third Football and Third Baseball. He holds a B.A. from Williams College and an ALM from Harvard Extension School.

Keri Maguire joined RL in 2016. She currently serves as the school nurse and registrar, teaches Sixie Health and Wellness, and helps with college guidance. She earned a B.A. from Holy Cross and M.S.N. from MGH Institute of Health Professions. Throughout her career she has worked as a nurse practitioner at Assumption College, nurse at South East Toronto Family Health Team, and staff nurse at MGH cardiac surgical step-down unit.

Kerin Maguire joined RL in 2024 as Assistant Director of External Relations. She is also a member of the Community and Culture Committee. Prior to RL she worked in student life at Tufts University; admission and financial aid at the Harvard Kennedy School; and for professional women’s soccer player, Ali Krieger. She holds a B.A. from Dickinson College and M.P.S. from Georgetown University.

(2013), Classics, Class II Dean.
BA (2012) Holy Cross
MA (2013) University of Liverpool.

Matt McDonald, Class of 1985, is the Director of Admission and Chair of the Admission Committee. He joined RL in 2021, teaches in the History Department, and is also Head Coach of Varsity Soccer. Prior to RL he worked in admission and financial aid at Choate Rosemary Hall and at Buckingham Browne & Nichols. He holds an A.B from Dartmouth.

Marcus Miller joined RL in 2018 as Director of Digital and Graphic Design. Marcus’s role includes designing the school’s print and digital publications, photographing and filming school life, and maintaining RL’s visual identity and branding. Prior to RL, Marcus held various communications roles at St. Sebastian’s School, Derby Academy, and Catholic Memorial School. He holds a B.A. from Drake University and an M.A. from Emerson College.

Jamie Morris-Kliment joined RL in 2013 and is Chair of the Classics Department. She serves as advisor to RL’s Classics Club chapter of the Mass Junior Classical League, RL’s Chapter of Habitat for Humanity, and RL’s Model United Nations club. She also helps coach the Varsity Track & Field Team and is a member of the Community and Culture Committee. Before RL, she was head of the Modern and Classical Languages Department at Concord Academy. She holds a B.A. from Yale and M.A. from Boston University, and is currently in the 4th year of a PhD program at the University of Florida, Gainesville.

Rob Opdycke joined RL in 1999 as Director of Music. He is the conductor of the Glee Club, Latonics, and Junior Chorus, the music director for musical theater productions, and he assists with the Jazz Band. He is also a member of the Admission Committee, a coach of Fourth Baseball, and he serves as Assistant Class V Dean. He holds an A.B. from Harvard College.

Alex Pellegrini, Class of 2010, joined RL in 2022 as the Assistant Director of Admission and Assistant Director of Alumni Affairs. He is also a member of the Arts Department, a member of the Admission Committee, and coach of JV Baseball. By training, Alex is a graphic designer and runs his own company, Grayfield LLC. He holds a B.A. from University of Colorado, Boulder.