Mt. Hebron Nursery School

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Main Office

Amy Schroeder, Director
MSDE Credential Level 6, Administrator Level 4
Amy has been a part of the MHNS staff since 2003, starting as assistant to the director, moving up to Co-Director, and then assuming the helm as Director in 2014.   She is a graduate of the University of Maryland, with a BA in English Literature and a MA in Higher Education Administration and Counseling.   Amy loves spending time with her husband, Fritz, and her children, Maddie and Eric (both MHNS alumni!).  She is an avid reader, loves cooking, needlepoint, and being on the beach.  She is devoted to the families and staff at Mt. Hebron and is proud of the children who have started their educational journey at the school. 

Kelly Baumgartner, Office Manager

Kelly was a volunteer at MHNS for 5 years then joined our staff support team in 2017.  In 2018 she became our office manager.  She holds a BA in Business Management form Gettysburg College.  Kelly and her husband Trevor have 2 children, Hayden and Max, both MHNS alums.  Kelly enjoys running, exercising, reading and traveling, especially to the beach!

Lead Teachers

Marielena Garbark, 5 day 4 year old Teacher
MSDE Credential Level 6
Marielena has taught at MHNS since 1999. Before joining our team she taught in the Charlotte Mecklenburg school system and various preschool programs. She has a BA in English and Education from the University of North Carolina at Charlotte.  Marielena is married to Steve and has two sons. She loves reading, cooking, classic design, children's literature and music.

Laurie Turner, 4 day 4 year old Teacher and ECC
MSDE Credential Level 6
Laurie started as a lead 5-day 4 year old teacher in 2013 but has been associated with MHNS for many years. Her youngest son attended MHNS. She taught kindergarten for 11 years in Baltimore County Public Schools and substituted in Howard County Public Schools.  Laurie holds an AA from Villa Julie College and both a BS and MS in Early Childhood Education from Towson State University.  She has been married to Bob since 1989 and has three sons.  Laurie enjoys biking, tennis, gardening and spending time with her family.  

Debbie Dansie, 3 day 4 year old Teacher
Debbie is a former MHNS parent and served on the Parent Board.  She has a BA in Early Childhood Education from Hood College and an MS in Early Childhood Special Education from Johns Hopkins University.  She taught Kindergarten in Montgomery County, where she grew up, for 9 years.  After starting her family, Debbie taught 4-year-olds for 10 years in Howard County.  She enjoys spending time traveling, watching movies and playing games with her husband and two children.

Laura DaPra, 3 day 4 year old Teacher

MSDE Credential Level 6

Laura has been a proud MHNS parent since 2014 and counting!  She has volunteered for various Parent Group activities as well as served as a Room Mom for 2 years.  Laura holds a Bachelor of Science Degree in Elementary Education from Salisbury.  Before joining the team at MHNS she taught Kindergarten and 3rd grade for several years at McDonough School.  Laura has also taught Religious Education for Kindergarten at St. Louis School.  Laura and her husband Michael have 3 children, Josh and Rosie both MHNS Alumni and Timothy who will be attending MHNS this year.  Laura enjoys traveling to the beach, all things Disney, especially traveling to Walt Disney World, cooking and baking.  She also enjoys being involved and volunteering at church. 


Mary Patricia (Molly) Entrot, 3 day 3 year old Teacher
MSDE Credential Level 6
Molly has sixteen years of experience in Early Childhood education. She has taught in our 2-day and 3-day 3 year old programs for thirteen of those years at MHNS. She was also a teacher in the Wilkes-Barre Area School District in Pennsylvania for three years. She holds a BS in Special Education from King's College-PA.  Molly is married and has three daughters. Her youngest daughter is an MHNS Alum.

Karen Mattingly, 2 day 3 year old Teacher

Karen has seven years teaching experience in Howard County Public Schools. She has taught first, second and fourth grade. Karen has a BA in Anthropology and a Masters in Education from the University of Virginia. Karen is married to her husband Kevin, and they have two children, Sage and Molly (both MHNS alums). Karen enjoys traveling, hiking and reading.

Lindsay Machiran, 2 day 3 year old Teacher

MSDE Level 6

Lindsay grew up in Howard County and is excited to join the MHNS team.  Lindsay has taught 1st and 5th grade and was also a Reading Specialist K-5 for 3 years.  She holds a degree in Elementary Education from Towson University and a Master's Degree from McDaniel College, in Reading.  Lindsay is happily married with four children.  She loves traveling with her family, running, sports, coaching, teaching and reading. 

Sarah Willey, 2 day 2 year old Teacher
MSDE Credential Level 6
Sarah has worked at MHNS since 2014 and helped institute the 2 year old program.  Sarah spent four years as a parent at MHNS, and both of her children attended our school.  She was also an active volunteer and substitute teacher before joining the staff.  She holds a BA from Randolph Macon College in Ashland, VA.  Sarah enjoys refinishing furniture, reading, and traveling with her family.  

Karen Wagner, 2 day 2 year old Teacher and Enrichment Teacher

MSDE Credential Level 6

After spending many years as a parent and volunteer, Karen began teaching at MHNS in 2015.  All four of her children are MHNS alumni!  Karen was a teacher to 3-5 year olds at the Columbia Montessori School as well as 2nd and 1st grade in the Howard County School System. She holds a BA in Psychology from the University of Maryland Baltimore County (UMBC) and a teaching certificate as well as a Masters of Arts in Teaching from Towson University.  Karen has been married to her husband Bob for 17 years.  She enjoys watching her kids play sports, going to the beach with her family, running and reading.

Andrea Muirhead, 2 day 2 year old Teacher and Enrichment Teacher

MSDE Credential Level 6

Before coming on board as an MHNS Educator, Andrea spent 2 years as a MHNS parent.  She was also a member of the MHNS Parent Group Board and Chairperson of games for our Annual Spring Fair for 2 years. Andrea spent 12 years in the classroom teaching 1st and 2nd grade as well as a reading reduction teacher. She was  also a substitute teacher for the Howard County Public Schools.  She holds a BA in Early Childhood Education from Towson and a Masters in Reading from Walden University.  Andrea enjoys traveling, cooking and spending time with her family.

Teaching Assistants

Anne Walsh, 5 day 4 year old Assistant Teacher and Book Bear Family Reading Program Librarian
MSDE Credential Level 3

Anne has had three children attend MHNS, and was a regular volunteer here, including co-chairing the Annual Spring Fair for many years. She is now an assistant in the 5-day 4s class. Anne holds a BA in English from Washington & Lee University and an MA in English from the University of Maryland. Anne and her husband have three children, Lucy, Gracie and Asher. They also have two Boston Terriors, Stella and Sophie. Anne enjoys reading, walking, gardening, volunteering at her daughter's dance studio and anything related to Boston Terriers and dog rescue in general.

Tracy Cogdill, 5 day 4 year old Assistant Teacher

Tracy had two children attend MHNS, and was a Room Parent, regular volunteer and assisted with the planning of Teacher Appreciation Week. Tracy was a lead teacher in a two year old classroom at two preschools in Northern Virginia. Prior to moving to Northern Virginia in 2016, she was a sixth and seventh grade social studies teacher for eight years with Baltimore County Public Schools. Tracy has a degree in Secondary Education and Social Science from Towson University and a Master’s Degree in Special Education from Towson University.  Tracy has 3 children – Madison (9 years old, MHNS alum), Allison (5 years old, MHNS alum) and Benjamin (1 year old) and two dogs – Bailey and Lucy.  Tracy loves spending time with her family, running, playing soccer, cooking, and traveling.

Peggy Schaefer, 4 day 4 year old Assistant Teacher
Peggy has taught first, second, and fourth grade for a total of 36 years in Howard County Public Schools. She also taught fourth grade for two years in Lexington Virginia, and  spent several years subbing in Virginia and Maryland. She has a Bachelor of Science in Elementary Education from Towson University and a Master of Science in Elementary Education Teacher Leadership from Johns Hopkins University. Peggy has been married to Kevin for 38 years and they have a daughter Brittany. All three of them graduated from Mt. Hebron High School.  Peggy enjoys reading, shopping, walking, exercising, and dining out. She loves watching the Orioles, Ravens, and Nascar.

Janice Hoffman, 4 day 4 year old Assistant Teacher

Janice has seven years of teaching experience in both Prince George’s and Howard County teaching 6th and 7th graders. She attended the University of Maryland and has BA degrees in Secondary English Education, and English Language and Literature, as well as a MA in Administration. Janice loves spending time with her husband, Jason, and her four kiddos - twins Courtney & Christopher (MHNS Alums!), Connor, and Cameron, and of course, her dog Kona. She loves to laugh, read, watch movies, and travel, especially to Disney Parks!

Janel Radford, 3 day 4 year old Assistant Teacher
MSDE Credential Level 4

Janel has been an assistant teacher at MHNS since 2010. She holds a BS in Nutrition from Montclair State University-NJ and has her 90-hour Child Care Certification.  Janel and her husband Richard were married in 2000 and have a daughter, Madison born in 2002, and son, Andrew born in 2004, who both went to MHNS. Janel likes reading, walking and jogging, spending time with the family and going to the beach during the summer with family and friends.

Barbara Sawyer, 3 day 4 year old Assistant Teacher
MSDE Credential Level 4

Barbara has been working at MHNS since 2010, and all of her children are MHNS Alums! She has worked as an assistant teacher as well as an Enrichment, Substitute and P.E. teacher. She has also worked as a Substitute Teacher at various Howard County Schools for five years. She holds a BS in Economics and Business from Mount Saint Mary's University and has her 90-hour Child Care Certification.  Barbara is married to Mike and has three children, Mikey, Caitlin and Jack.  She enjoys reading, working out, walking her two beloved dogs, Charlie and Stewie, and watching college lacrosse.

Michelle Hoy, 3 day 3 year old Assistant Teacher

MSDE Credential Level 6 

Michelle has been a Room Parent and volunteer at MHNS for the last 4 years and became an assistant teacher in 2018.  She holds a BA in Communications from American University. Michelle and her husband Doug have three children, all of whom have attended MHNS. Michelle loves spending time with her family, traveling, going to the beach, reading and running.

Terry Purnell, 2 day 3 year old Assistant Teacher

MSDE Credential Level 6

Terry started her work at MHNS as a substitute teacher and quickly was added to our staff as an assistant teacher. She has been in this role since 2009. She has also worked at Ken Crest Preschool in Pennsylvania. Terry holds a BS in Speech and Language Therapy from Penn State University.  She is married and has two children, both MHNS Alumni. She likes to read, exercise and go on vacations with her family.


Stuart Unkenholz, 2 day 3 year old Assistant Teacher

MSDE Credential Level 3

Stuart started working in 2009 as an assistant teacher with special needs preschool children in a Regional Early Childcare Center (Howard County Public Schools). Stuart has also held assistant teacher, as well as lead teacher positions in private preschools. Her love of children led her to obtain her 90-hour Child Care Certification. In addition, she holds a BA in Spanish from Meredith College in Raleigh, N.C. Stuart is married to John, and has three children, Ally, Andrew, and Ashley. During her free time. she likes walking, reading, watching sporting events and going to the beach in the summer with family and friends.


Staff Support

Sharon Sanders, Early Childhood Consultant
MSDE Credential Level 6

Sharon started teaching at MHNS in 2004 and has been part of the MHNS staff for 16 years now. Sharon has taught including as well as an art teacher. Before teaching at MHNS she taught Kindergarten in Baltimore County for 10 years. Sharon holds a BA in Early Childhood Education from Towson University and a MA of Education from Towson University. She holds a current Maryland State Teaching Certificate.Sharon is married and has three daughters and enjoys spending time with her family, quilting, crafts and reading.

Mary Olds, Early Childhood Consultant
MSDE Credential Level 6

Mary started teaching in Montgomery County Public Schools. She began at MHNS as a teacher's assistant in the two day three class. She then became a lead teacher. She has over thirteen years of experience at MHNS and more then 20 years of experience in teaching. Mary holds a BS in Elementary Education from the University of Maryland as well as an MS in Education from Johns Hopkins University.

Sarah Bond, Staff Support
MSDE Credential Level 5

Sarah came to Mt. Hebron in 1984 with an AA degree in general studies and 64 hours of Early Childhood Certification. Sarah has worked extensively in the classroom as a teacher assistant in all 3 and 4 year old programs, from 1984 to 2008.  In the fall of 2008, Sarah began working effectively as classroom support to our staff.  She can be found in any of the classrooms on an as needed basis working as a substitute, working one-on-one with children as well as in small groups, assisting in the office and, preparing materials for teachers. Because of her vast experience she is seamlessly able to connect with the children, and you can expect that she will come to know them as they will her.

Aimee Daly, Staff Support
MSDE Credential Level 3
Aimee came to Mt. Hebron in 2013 when her youngest of three children William began attending the 3 day program. After volunteering continuously for any position available it became apparent that her love of children and nurturing attitude would be a natural fit. As a mother of three (Zachary, Cecilia and William) she has years of on the job training. After attending Broome Community College in Binghamton, NY for Business Management she and her husband moved to Gainesville, Georgia for 5 years before finally settling in Ellicott City in 2011. Aimee has been married to Matt since 2001 and enjoys reading, volunteering, and anything having to do with children. Aimee finds joy in connecting with children and can’t wait to watch them learn and grow while at Mount Hebron.


Karen Radcliffe, Music Teacher and ELA Support Staff

MSDE Credential Level 6

Karen was very involved in her girls' preschool experience for six years, both in the classroom and on the executive board, and enjoys being back in a nursery school setting.  Karen was a second grade teacher for Montgomery County Public Schools before she became a stay at home mom, and has always been very active in her girls’ HCPSS schools.  Karen has a BA from James Madison University and a BS in Elementary Education from the University of Maryland.  She is happily married to Kevin and they have two daughters, Megan and Allison.  When she is not attending her girls’ music and sports activities, Karen enjoys volunteering at the high school, reading, trying new recipes and spending time with their Labrador Retriever.

Jennifer Porter, P.E. Teacher

MSDE Credential Level 6

Jennifer has been a parent and active volunteer at MHNS since 2016.  Jennifer taught ESOL for Pre-K in Montgomery County and holds a Master's Degree in Curriculum and Instruction in Elementary Education, from the University of Maryland.  Jennifer is married to a firefighter and has 4 children, 3 of which are MHNS Alumni!  Jennifer loves running, swimming, biking, spending time with her family, reading and taking pictures.

Alex Cratin, Art Teacher 

Alex has spent 5 years as a parent volunteer at MHNS and 2 years as a Room Parent. She has taught in Baltimore County Schools as a substitute teacher and at the Trinity After-School Care Program. Alex has a BA of Fine Arts with majors in Graphic Design and Advertising from Flagler College in St. Augustine, FL. Alex is married to her husband Steve. They have two children, Jenna and Zachary (both MHNS alums) and her goldendoodle named Maggie. Alex enjoys gardening, decorating, art journaling and collage, working out at the gym, watching her kids play lacrosse and soccer, vacationing in Deep Creek and spending time with family and friends.

Kerrie Botticelli,  Outdoor Curriculum Specialist

Kerrie started at MHNS, as the PE Specialist, the same year her youngest daughter started in the 2day 3s class. Before finding MHNS, Kerrie worked as an assistant teacher at a Montessori School and ran an in home daycare, while her children were young. Kerrie attended the University of MD and holds a BS in Family Studies. She married her high school sweet heart in 2004 and has 3 children, Melia, Jadin and Kambria. You will find her running around on the playground, creating fun activities for the students, to make learning outside fun. She enjoys the beach, cooking, gardening, tennis, yoga, and spending time with her family and friends.

MHNS Partners

Laura Hoover, M.S., CCC-SLP

Laura is an American Speech-Language-Hearing Association (ASHA) certified and Maryland state licensed speech language pathologist (SLP). She received her Master’s in Speech, Language, and Learning from Northwestern University and her Bachelor of Science in Communication Sciences and Disorders from Florida State University. For the past five years, she has worked in pediatric private practice with children birth to adolescences. She is the owner of Hoover Speech Therapy which offers home and community-based speech and language therapy services. Her specialties include the evaluation and treatment of children with articulation disorders, language delays, autism, cerebral palsy, and feeding disorders. Laura is Beckman Oral Motor Certified. Laura loves being a SLP because she helps children find their voice and become effective communicators. She is excited to be working with the team at Mt. Hebron Nursery School!

Tara Zeller, Yoga Club Instructor 

Tara has been an ASHA certified and State of Maryland licensed Speech-Language Pathologist for over 27 years.  She has worked primarily in early intervention programs (birth - 6 years) in local schools and Head Start centers. Tara can be contacted by phone (410-960-3291) or email (

Melanie Facchiano, Webmaster and Online Registration Coordinator

Melanie has had three children attend MHNS and is an MHNS alum herself. She was a parent volunteer at the school for many years including co-chairing galas and acting as President of the Parent Group. She has worked for MHNS since 2013 and has had various roles including PR and Marketing, Assistant Teacher for the 5day 4's class with Ms. Marielena as well as working in our front office for four years. She continues to work as our webmaster and online registration coordinator.