Sabrina Anderson, Physical Education Teacher
BS, University of New Hampshire
Crefelder since 2024

Lori Anselm, Sewing Teacher
BFA, Moore College of Art & Design
Crefelder since 2021, Parent of Crefeld Alum ‘13

Ben Arnold, Music Teacher
Berklee College of Music
Philadelphia College of Performing Arts
Crefelder since 2000

Justin Broderick, Math Teacher and Advisor
BA, Lewis University
Crefelder since 2022

Cheryl Capacchione, Business Manager
BS, Arcadia University
Crefelder since 2012

Sierra Christian, Office Manager
BA, Bloomsburg University
Crefelder since 2023

Ryan Coffey Keaton, Assistant Head of School
BA, SUNY Geneseo
MSEd, University of Pennsylvania
Crefelder since 2021 

Josh Cole, Director of the Glass Studio & Art Teacher
BFA, Cleveland Institute of Art
MFA, Tyler School of Art, Temple University
Crefelder since 2008

Rachel Combs, Upper School Science Teacher (11/12 team) & Advisor
BS, Rice University
BA, Rice University
MEd, Cabrini College
Crefelder since 2014

Laura Craig, Director of Learning Support
BS, Birmingham-Southern College
MA, University of Texas
Crefelder since 2003

Daniel Cunitz, Middle School Science Teacher (7/8 team) & Advisor
BA, Franklin Pierce College
MS, Drexel University
Crefelder since 1995

Noa Eagles, Emotional Support Counselor
BA, Bryn Mawr College
MSW, Bryn Mawr College
Crefelder since 2022

Sarah Franzel, Learning Specialist & Upper School Advisor
BA, University of Michigan
MS, California State University, East Bay
Crefelder since 2008, Parent of Crefeld Alum ‘13

Filip Furmanek, Technology Support Specialist
BA, University of California, Berkeley
Crefelder since 2018

Joan Giannobile, Director of Development & Communications
BA, University of San Francisco
Crefelder since 2010, Parent of Crefeld Alum ‘18

Nicole Greaves, Learning Specialist & Upper School Advisor
BFA, Emerson College
MFA, Columbia University
Ed. Certification, Bryn Mawr College
MEd, Chestnut Hill College
Crefelder since 2006

Michael Herman, Physical Education Teacher
BS, Bloomsburg University
Crefelder since 2016

Ruth Joray, Upper School Learning Support
BFA, Rhode Island School of Design
MS, Chestnut Hill College
Crefelder since 2020

Gena Lopata, Dean of Faculty & Curriculum Coordinator
BA, Clark University
MEd, East Stroudsburg University
Crefelder since 2005

Christina McShine de Jiménez, MEd, CSM, Upper School History Teacher (11/12 team) & Advisor
AA, Palm Beach State Collge
BA, Johnson C. Smith University
MEd, Concordia University
Crefelder since 2023

Krystle Merchant, Middle School History Teacher (7/8 team) & Advisor
BA, Duke University
MA, McGill University
Crefelder since 2023

Toni Mesina, Upper School English Teacher (11/12 team) and Advisor
BA, University of Hawai'i at Mānoa
MA, University of Hawai'i at Mānoa
Crefelder since 2020

Kristy Modarelli, Director of Special Programs & Marketing
BFA, Cleveland Institute of Art
MBA, University of Illinois, Urbana Champaign
Crefelder since 2008

Mary Hope Mulcahy, Middle School English Teacher (7/8 team) & Advisor
BA, University of Nebraska
BS, University of Nebraska
MA, University of Rochester
Crefelder since 2023

Sara Narva, Performance Art Teacher, Sexual Education Teacher, & Advisor/CoDirector of DEI
BA, Haverford College
EdM, Temple University
Crefelder since 2005

Mike Pardee, Upper School English Teacher (9/10 team) & Advisor
AB, Princeton University
MA, Boston University
MA, Columbia University Teachers College
Crefelder since 2022

Courtney Parker, Director of Emotional Support
BMus, The Hartt School, University of Hartford
MMT, Temple University
MA, Goddard College
Crefelder since 2014

Leonor Prince, Math Teacher & Upper School Advisor
BS, Universidad Catolica Andres Bello, Caracas, Venezuela
MBA, St. Joseph’s University
Crefelder since 2014

Lisa Shaffren, CrEF Lab Teacher
BA, Pennsylvania State University
MA, The University of Mississippi
Crefelder since 2012

Dean Simonsen, Math Teacher & Upper School Advisor
BA, Kutztown University
Crefelder since 2018

Collin Smith, Building & Grounds Manager
Crefelder since 2023

Sarah Spector, Upper School Science Teacher (9/10 team) & Advisor
BS, Southern Oregon University University
MAT, Westminster Graduate School of Education
Crefelder since 2019

Joseph Szalwinski, Upper School History Teacher (9/10) & Advisor
BA, Arcadia University
Crefelder since 2021

Troy Thomas, Director of Admissions
BS, Wilmington University
MA, Rosemont College
EdM, Harvard University
Crefelder since 2021

Kasey Thompson, Spanish Teacher
BA, Kalamazoo College
MS, Springfield College
Crefelder since 2023

Nica Waters Fleming, Director of Technology/CoDirector of DEI
BA, Temple University
MS, Philadelphia University
Crefelder since 2010

Aaron Wiener ‘84, Art Teacher & Advisor
BFA, Tyler School of Art, Temple University
Crefelder since 1990, Parent of Crefeld Alum ‘23

Evan-Taylor Willis, Emotional Support Counselor
BA, Chestnut Hill College
MSW, Widener University
MEd, Widener University
Crefelder since 2022

Tori Wrye, Dean of College Counseling & Registrar
BA, Pennsylvania State University
MEd, Cabrini College
Crefelder since 2010

George Zeleznik, EdD, Head of School
BS, Indiana University of Pennsylvania
MA, Gratz College
EdD, Wilmington University
Crefelder since 1999