Cornerstone Upper Tier  Lancaster, PA Cornerstone Upper Tier  Lancaster, PA Cornerstone Upper Tier  Lancaster, PA Cornerstone Upper Tier  Lancaster, PA Cornerstone Upper Tier  Lancaster, PA Cornerstone Upper Tier  Lancaster, PA


Mrs. Elisa Battle

Mrs. Elisa Battle has been teaching Gym and Fitness classes to Homeschoolers for 15+ years. She enjoys having fun with the students while instilling the discipline of lifelong physical fitness and regular exercise. Along with her husband and family, she makes physical fitness a priority.

Mr. Jeff Bradley

Jeff Bradley taught in the Hempfield School District for 33 years.   From 1977 until 1995, he taught Pre-Algebra and Algebra at Centerville Middle School before moving to Landisville Middle School.   At Landisville, in addition to teaching, he coached the middle school MathCounts team to a Pennsylvania State title in 1999.    In 1999, when he became Supervisor of Mathematics for HSD, he taught Geometry and Advanced Algebra and supervised the 30+ middle and high school math staff.   After retiring from Hempfield in 2009, Jeff began a teaching stint at Harrisburg Community College and also supervised IU13 math teachers.   In 2017, he began teaching in the Harvest Coop.

In addition to teaching, Jeff was a four-time All-American runner at Millersville University, winner of the Red Rose Run (4 times) and Millersville Turkey Trot (7 times), and a track coach at Hempfield High School for 36 years.   He was the head coach of the 2009 PIAA State Championship team and is currently a cross-country coach at Hempfield High School.  Bicycling is a passion for Jeff who has ridden across America (sagged by his wife Nancy). Both Jeff and Nancy are active in LifeCycles, a Christian mentoring organization that combines bicycling with goal setting to build young men of character. 

Jeff and his wife Nancy, who live in East Hempfield, are members of First United Methodist Church in Lancaster and are active in Sunday School and the Tax Ministry.

Mrs. Ellen Campbell

Ellen Campbell received teaching certificates from the state of New Jersey and the state of Pennsylvania. She is a homeschool evaluator and has taught all ages of students in a wide variety of classrooms and other teaching situations for more than 35 years. She homeschooled her own children for 12 years. Ellen took Writing for Children and Teenagers and Writing Children's Books from The Institute of Children's Literature. She was a member of the San Diego County Christian Writers' Guild and of Lancaster Christian Writers. Ellen has had a few articles published. She really enjoys teaching writing, history, and civics courses.

Mr. Mark Campbell

Mark Campbell has Bachelor’s and Master’s Degrees in Civil Engineering and is registered as a Professional Engineer in the states of Pennsylvania, California, and New Jersey. He has experience teaching students at many age levels and frequently makes presentations to governmental decision-makers regarding planned development projects. He often teaches classes integrating faith and science.

Mr. Greg Hershberger

Greg Hershberger taught school for 20 years in the states of West Virginia, Oregon, and Pennsylvania. He received a B.A. in Psychology from Malone College in Canton, Ohio. He received his teaching certificate from Oregon College of Education in Monmouth, Oregon. He received a permanent teaching certificate from Pennsylvania with a credential in high school math. He has taught Business Math, Junior High Math, Pre-Algebra, Algebra 1, Algebra 2, Geometry, and Trigonometry. He has been a principal and guidance counselor and taught computers. He has been a pastor for 30 years. He has been married to his wife Lois for 43 years and has 3 homeschooled adult children and 8 grandchildren.

Mrs. Mary Hunt

Mary Hunt is a photographer, registered nurse, wife, and dog mama. Mary is the owner of Mary Hunt Photography, which started up in 2016. Mary has had a love for photography since middle school, and acquired her first DSLR her sophomore year of high school. Mary also works as an RN at Lancaster General Hospital. Mary graduated from the Pennsylvania State University in 2016 with an Associates Degree in Nursing. Mary is currently attending the Pennsylvania College of Health Sciences and is anticipating graduating with her Bachelors Degree in Nursing in August of 2019. Mary was homeschooled herself from kindergarten through her senior year of high school and has a passion for home education and co-ops. 

Mrs. Iris Lehman

Iris Lehman has a Bachelor’s Degree in Elementary Education, a Master’s Degree in Teaching and Curriculum, and her Reading Specialist Certification.  Along with homeschooling her own three children, she has taught classes in reading, writing, nature study, physical fitness and health/safety.  She has been a homeschool evaluator for over ten years and enjoys working with homeschool families who wish to discuss curriculum and educational philosophy.  Iris is also employed at the Hempfield Recreation Center as a tennis coach and Harrisburg Area Community College as a developmental reading instructor.    

Mrs. DeNise Malanchuk

I graduated from Lancaster Mennonite High School and attended Lancaster Bible College. I'm mom to two teenagers. I've been homeschooling for 9 years. I love spending time with my backyard chickens...some in my family even say the clucks get better food and lodging :-)

Mr. Sam Mylin

Sam and Kate Mylin are owners of MASTERPIECE Art. They teach art classes throughout Lancaster County and are involved with Christian outreach using art. The Mylins are on staff at the Delaware Art Museum and are members of the Association of Christian Artists and the Lancaster Art Association.

Mr. Adam Newswanger

Adam Newswanger graduated highschool in 2008.  Following highschool he spent several years working before attending Lancaster School of Massage which he graduated in 2014.  He is currently employed at Mill Road Cabinetry.  He is excited to share his love for science, teaching at Cornerstone.

Mrs. Kim Paine

Mrs. Kim Paine enjoys speaking Spanish and sharing her love of the language with others.  She has a double degree in Spanish and Linguistics from the Univ. of CA, Santa Barbara.  She has tutored and taught Spanish to homeschoolers for over 20 years.  She highly recommends learning to speak a second (or third!) language to increase the number of people with whom you can share the Good News of Jesus Christ!  She lives in Quarryville with her husband and two daughters, Mari and Kerith.


Mrs. Pam Powles

Mme Pam Powles loves teaching, and has been teaching French and Spanish for over 35 years, first in a public school setting, and more recently in a home school support group setting. In addition to teaching French at Cornerstone, she currently teaches French and Spanish classes to students online. Pam holds a Bachelor of Arts Degree in French, and Master of Arts Degrees in French and Spanish. She is certified to teach French and Spanish in grades K-12 in Pennsylvania, New Jersey, and New York State. She has been a homeschool evaluator since 1995, and homeschooled her own three children from Kindergarten through high school. 

Mrs. Shallon Rohrer

Shallon Rohrer has been interested in the German language ever since high school.  The year after high school she was a Rotary Club exchange student in Germany.  Shallon attended Millersville University with a German major and a double minor in History and English Linguistics.  She studied abroad when she was a junior, spending another year in Germany.  After graduating from MU with a BA in German, she briefly worked in tourism before becoming a full-time mom and homemaker.  Shallon is currently a homeschooling mom of 5.

Mrs. Peggy Teeter

Mrs. Teeter has taught math in Pennsylvania and Arizona for 30 years. She holds a Bachelor of
Science in Secondary Education with a concentration in Mathematics from Indiana University of
PA and completed graduate courses from Penn State University. She has taught all levels of
Mathematics ranging from Algebra to Calculus but a primary emphasis with Geometry and
PreCalculus. After retirement in 2011 she continued working for the school district in
Homebound Instruction to provide instruction for students with illnesses until they were able to
return to class. In 2017 she and her husband returned to Pennsylvania to be nearer to their 2
sons and 6 grandchildren.

Mr. Cliff Zeller

Cliff Zeller holds a Bachelor’s degree in History and a Master’s in Bible with a proficiency in Greek from Bob Jones University. He lives on a small farm in Berks County, where he keeps a herd of fainting goats as well as numerous other critters. This will be his ninth year teaching science and math courses at Cornerstone.

Mrs. Joyce Zimmerman

I hold a BA in English from Zhongshan University in China and an associate degree in Practical Theology from Christ For The Nations in Dallas, TX.  I have been teaching ESL and Mandarin since 1994; I am a volunteer financial counselor for almost two decades.

My husband and I have been homeschooling our daughter all her life and she is in her junior year now.  My family enjoys traveling, listening to and playing music, and I especially like to program all kinds of summer camps for middle and high school ages and students are from all over the world.