Teachers & Staff

Administrative Team


Leslie Rescorla (Ph.D., Yale University, 1976) is the director of Early Childhood Programs at Bryn Mawr College and serves as the psychological consultant to the Thorne School.  Professor of Psychology and director of the Child Study Institute, Dr. Rescorla is a licensed, school-certified, clinical child psychologist. She received her clinical training at the Yale Child Study Center, Children's Hospital of Philadelphia and the Philadelphia Child Guidance Clinic.


Amanda Ells Ulrich (M.Ed., Bank Street College, 1994) is the Director of the Phebe Anna Thorne School.  Ms. Ulrich is a graduate of Brown University.  She received her early childhood training from Bank Street College in New York City.  Before becoming Thorne's Director, she served as head teacher in the Thorne toddler programs and taught and worked in admissions at the Spence and Chapin Schools in New York City.  Two of her daughters are Thorne graduates.

Kate photo

Kate Brown, is the Administrative Director of the Thorne Kindergarten Center.  She graduated with a BA in Art History from Randolph-Macon Woman's College in Lynchburg, VA.  A former Thorne parent, Kate chaired the Thorne auction for two years and helped launch the school's social media presence.  Her background includes work at Tierney Communications and The National Gallery of Art in Washington DC.  Most recently she served as the president of the Haverford Friends Parent Teacher Organization.  Her sons are both Thorne graduates.


Jan Linowitz (Ed.D, Harvard University, 1986) is the psycho-educational consultant to the kindergarten and nursery school programs.  Prior to coming to Bryn Mawr, she was a lecturer in Interdisciplinary Studies in Human Development at Penn's Graduate School of Education and has worked in a variety of educational and clinical settings with children and parents.  She has also led the Wednesday morning Toddler Time program for toddlers and their parents/caregivers since 2005.  Two of her sons are Thorne graduates.



Each classroom is supervised by a lead teacher who is certified in early childhood education and who has a strong background in child development.

Toddler Program:

sarah Sarah Kinsella, a teacher in the Nearly Three's Preschool classroom, is a graduate of Kenyon College (B.A.) and Teachers College, Columbia University (M.A.). She taught Kindergarten and Second Grade in New York City for eight years. Having been part of the Thorne community as a parent for two years, Sarah joined the Thorne faculty in 2015.
stacey Stacey Helmers, a teacher in the Nearly Three's Preschool classroom, is a graduate of Lafayette College (B.A.) and the University of Pennsylvania (MGA) and has been with the Thorne School since 2011.


Traditional Preschool:

picture Kirsten Mudd, the lead teacher of Thorne School's Older Preschool Class, is a graduate of Hampshire College and has been teaching at Thorne School since 1992.  She also serves as the Assistant Director of the Thorne School.  Her two children are both Thorne graduates.
julie carlson Julie Carlson, a teacher in Thorne School's Older Class, is a graduate of Yale University and has been teaching at Thorne School since 2011.  Julie is also the teacher/coordinator of the Summer Camp program.
Jodie Baird

Jodie Baird, the teacher of Thorne School's Younger Preschool Class, is a graduate of Stanford University (B.A.) and the University of Oregon (Ph.D.) and has been teaching at Thorne School since 2012.  Her two children are both Thorne graduates.



Mayana Mayana Carter, a teacher in Thorne School's Younger Preschool Class, is a graduate of The University of Maryland (B.S.) and has been teaching at Thorne School since 2014. Mayana is also a teacher in Thorne School's afternoon program.


Kindergarten Center:



Christine Dolor, (M.S., CCC-SLP) is the Head of Speech/Language at the Thorne Kindergarten Center.  She joined the Language Enrichment team as the speech-language pathologist in 2010.  Prior to working with us, she was a speech therapist and Director of the Speech-Language Program at the Crossroads School, working with children with language-based learning differences and coordinating services.  She also has extensive prior experience working as a speech therapist since 2001.

Rachel Rachel Stern, is the Kindergarten teacher.  She is a graduate of Bryn Mawr College (B.A.) and Temple University (M.Ed.), and has been teaching at Thorne School since 2013.

Debbie Moran is an assistant teacher in the Kindergarten Center.  She has worked at Thorne since 2010. She has over 16 years of childcare and development experience including roles as a pre-school teacher and playgroup facilitator.




Shirlee Ashmore is an assistant teacher at the Kindergarten Center.  She has a certificate in Early Childhood Education.  She worked at the Haverford School District in special education for 12 years before joining us in 2013. Shirlee coordinates the art and cooking activities at the Kindergarten Center and is a member of the Language Enrichment Team.


Language Enrichment Preschool Program:



Bev McDonell (M.A. Speech Pathology Western Washington University; B.S.
Speech Pathology/Audiology Pennsylvania State University) is the Program Head of the Language Enrichment Preschool Program (LEPP).  She has been the speech pathologist in LEPP at the Phebe Anna Thorne School since 1992. She has extensive experience with both preschool and school-aged children with language and learning differences and is a certified Wilson Tutor for children with reading difficulties.


Kim Milliken (BS Elizabethtown College; PA State Teacher Certification, Delaware County Community College) joined the LEPP teaching team as lead teacher in 2008. Prior to coming to Thorne, she worked as a trained Montessori teacher at Main Line Montessori School in both the toddler and main classrooms.


kari Kari Richards is the assistant teacher in the Language Enrichment Preschool Program.  She graduated from Georgetown University (B.A.) and the University of Pennsylvania (M.Ed).  She has been working at Thorne since 2012 and three of her children are Thorne graduates.




Teaching Aides

All Thorne classrooms have teaching aides who provide additional adult suppport in the classroom.  The teacher aides are typically Bryn Mawr or Haverford College undergrads who have experience working with young children.