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Meet our Family...

Julie Achor has been with Derry Preschool for over 13 years.   She has a Bachelor's degree in Social Science from Penn State University. She has four daughters and lives with her husband and her Siberian husky.  Mrs. Achor likes to bake, read, spend time outdoors and go hiking. 

Cindy Buck has been with  Derry Preschool for over 12 years.  She has a degree from Harrisburg Community College in Business Administration.  She has a daughter Angela, two sons, Nathan and Eric, and Eric's wife, Katie.  Mrs. Buck likes to help out at the food bank and usher at the Hershey Theatre.  She also likes to paint pictures and crafts and work out at Gold's Gym. 

Louise Cieslielka started working at Derry Preschool in 2015, but has been a member of the DP family for so many years. She is a former DP board president and board member for over 8 years. She graduated from Elizabethtown College with a degree in biology. She has four amazing children – two boys and two girls. In her free time she likes to garden, read and play tennis!

Lori Cotter has been teaching at Derry Preschool since 2010 and loving every minute of it! She has a Bachelor of Arts from Salem College with a double major in Criminal Justice and Psychology, and has worked in both of those fields. She is married to Tim and lives in Hershey.  They have 3 children, Andrew, Matthew and Mary. Putting her toes in a sandy beach anywhere is one of her favorite things to do. 

Matt Deliberty has been with Derry Preschool since 2013.  He is currently working on obtaining his early childhood degree. He runs a lawn service and is a U.S Swim coach for Hershey Aquatic Club. He has been coaching swimming for over 8 years. Mr. DeLiberty enjoys exercising and helping with a creative ministry team at his church.

Michelle Delmonico is Derry Preschool’s office manager.  She served as a DP Board Member for over 4 years.  She graduated from Quinnipiac University with a Gerontology and English degree in 1996, and a MBA in 2008.  Prior to being a stay at home mom, she worked in sales management for Pfizer Pharmaceuticals in Massachusetts, Manhattan, New Jersey and Brooklyn, NY.  She and her husband, Ty, have two great children; her daughter is a DP alum and her son is currently enrolled at DP.  She enjoys spending time and traveling with her family, gardening, cooking, volunteering, and cycle classes.

Jan Dunkle has been teaching at Derry Preschool for 28 years.  Previously she taught Music in Buck’s County.  She has a BS in Music from the College of William and Mary and a Masters equivalency.  Mrs. Dunkle was married to David, the Doctor for the Chocolate Factory, for 53 years before he passed away two years ago.  She has two daughters, Lynn who teaches spanish at Hershey HS and Karen, who is a nurse in New Jersey.  She also has four grandchildren.  Mrs. Dunkle likes to play bridge, read and spend time in Ocean City by the pool.  Most of all Mrs. Dunkle loves children!

Trish Good has been teaching at Derry Preschool since 2004, but has been a preschool teacher for 30 years.  She was also a substitute teacher in public schools for two years.  She has a degree in Elementary Education from the University of Wisconsin.  Mrs. Good lives with her husband and has four children: Brian who has three children, Melissa who is married with two children, Amy and Michael.  She also has a dog named Lillie.  She likes to quilt, knit, read, travel, and visit her children and grandchildren.

Donna Maurer is starting her seventh year at Derry Preschool.  She graduated from both Indiana University and Villanova with BS in Biology, Health and Physical Education and Nursing.  Mrs. Maurer lives with her husband Bob, an orthopedic surgeon, and has one son in medical school and another son and daughter in college.  She coaches with the Hershey Aquatic Club, enjoys gardening, home decorating, her two Gordon setters and visiting her children.

Mallory McDermott Mallory McDermott has been with Derry Preschool since 2013. Besides teaching, Mrs. McDermott develops the KickStart Curriculum and serves as the tuition and registration manager.  She previously worked at the Vista School for four years with both elementary aged and high school aged students.  She attended Eastern University and graduated with a degree in Elementary Education with a concentration in reading.  Mrs. McDermott is married to Jason and have a 2-year-old son named Caden, along with a dog they rescued named Chloe.  Both Mallory and her husband have a passion for teaching children. They also work as relief house parents at Milton Hershey where they are able to mentor underprivileged students.

Carol Mitchell has been with  Derry Preschool since 2008.  She is a graduate of Bishop McDevitt HS and worked as a Bell Telephone secretary.  She retired in 2002 from Verizon after a 35 year career.  Mrs. Mitchell truly enjoys spending time with her daughter and son-in-law, her two step sons and daughter-in-laws and her 7 adorable grand children – whom she loves to the moon and back!  She loves flowers, gardening, cooking, volunteering at Church, "bargain" shopping and is a news junkie.

Rachita Nambiar has been with Derry Preschool since 2012.  She also runs an Indian Classical dance institution.  She has a Masters in Biochemistry and a Bachelors in Nutrition from India.  She is also qualified in South Indian Classical Dance form.  Mrs. Nambiar lives with her husband and two girls.  She loves to dance, sing, read to her kids and try out new recipes, when she has the time!

Nancy Neuin has been teaching at Derry Preschool since 1998 and has over 26 years of teaching experience.  She attended Mansfield University and received a BS in early childhood and Home Economics (K-12), and took additional courses at Penn State/UNC towards a Masters equivalency.  She lives with her husband Chris Petersen and has two children, Bailey (22) and Drew (19).  She also has two dogs, Zoe and Riley.  She enjoys any type of arts and crafts, Zumba, baking/cooking, hiking, skiing, animals, and enjoys having fun with children and senior citizens.


Barb Rosensteel has been the Director of Derry Preschool for over 20 years.  She has been a teacher of young children for 30 years.  She attended Millersville University where she received a Dual Certification in Elementary Education and Special Education. Mrs. Rosensteel has been married to her husband Jeff for over 30 years and has 3 daughters, Erin, and twins Mallory and Meghan.  She has been blessed with three grandchildren! She and her husband and are very involved in their church youth group, and are members of the creative ministries team.  They love children of all ages and most of what they do involves trying to encourage and teach them. 

Dori Schwanger is starting her eighth year at Derry Preschool.  She has been married to her husband Jeff for 26 years and has three children.  Cody is 24 years old and a graduate of California University of PA, Abigail is 20 years old and in her third year of college HAAC/Millersville and Shane is 14 years old and in 8th grade at Hershey Middle School.  She enjoys working with and designing flowers, and is a youth advisor with her husband at her Church.

Marge Sweeney has been teaching at Derry Preschool for seven years and has been a teacher for 29 years.  She has a BA in Elementary Education as well as a Masters in Reading and 30 Special Education credits.  Mrs. Sweeney has been married for 25 years, has three adult sons and a 15 year old daughter, and her fluffy dog Reeses.  Her hobbies are reading, exercising (power walking and Zumba), gardening and knitting. 

Colleen Tunnell has been teaching at Derry Preschool for over ten years and previously taught 1st grade in the Central Dauphin School District.  She has a degree in Elementary Education with a concentration in Early Childhood from Shippensburg University.  She also has a Masters in Teaching and Curriculum from Penn State.  Mrs. Tunnell is married to Matt and has two daughters, Marley and Alaina, both in high school, who are both former Derry Preschoolers. They also have two dogs  named Lucky & Bentley.  She likes to walk, read, travel, and watch her kids play sports.

Maxine Umberger has been with Derry Preschool for over 15 years.  She was an Instructional Aide in Lower Dauphin School District for 17 years.  She attended Harrisburg Area Community College majoring in Elementary Education.  Mrs. Umberger is married to Randy, and has two children, Jason and Megan.  She also has four grandchildren, Alyssa, Leah, Gavin and Claire.  She loves to read, browse in bookstores, walk and travel to visit her grandchildren. 

Nancy Walmer has been with Derry Preschool for over 5 years.  Mrs. Walmer will be married for 45 years in December and has two grown children and three amazing grandchildren. In her spare time she enjoys reading.

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