Members/Officers and Bios
- Jonathan Brassington
- Harry Carpenter
- Patricia Dahm
- Maureen Fendrick
- Peggy Fenner
- Grant Geiger '02
- Doug Gessl
- Paul Gilbert
- Dan Goldsmith
- Kristine Ilaria
- Sally B. Keidel, Head of School
- Jeffrey Lipson
- Steven Lisk
- Alex Manganiello
- Staci Williams Seeley
- Joshua Stewart '92
- Christopher R. Tompkins
- Christine Whaley
Jonathan has a bachelor’s degree in computer science and mathematics from Misericordia University and a master’s degree in telecommunications and operations from the University of Pennsylvania. He is a Wharton Fellow and serves on the Board of Trustees of Misericordia University, Penn’s Abramson Cancer Center Director's Leadership Council (ACCDLC) and the Montgomery School. Jonathan is also a Board Member of The Greater Philadelphia Alliance for Capital and Technologies (PACT) and he is on the Advisory Board of Temple University’s Fox School of Business. He also serves as a Board Member of Listen Logic, as a member of the Young Presidents Organization, and as a Trustee for the Paoli Hospital Foundation Board. Jonathan currently lives with his wife Linda and their two sons in Phoenixville, Pennsylvania.
Harry Carpenter is in his second year of board service with Montgomery School. Harry and his wife Laura are the proud parents of 3 Montgomery School Alum, Catherine ’12, Jack ’13 and Abigail, ’17.
Harry is currently the CEO of Merit Service Solutions, an exterior maintenance company headquartered in Malvern. Prior to that, he was President and COO of Brightview. The majority of his career was spent with ARAMARK Corporation where he served for 25 years and his last role was President and Chief Operating Officer.
Previously, Harry has served on the board of Make-A-Wish as well as Japan based AIM Corporation.
Patty is an independent consultant, specializing in large-scale information systems implementation, change management, business process design, program management and organizational effectiveness. Patty has extensive experience with global pharmaceutical sales and marketing operations, customer relationship management, anti-bribery/corruption and compliance controls. Patty graduated from Temple University, studying business and computer science.
Patty is parent of Georgia Dahm ’15, who attended Montgomery School for 11 years (3 years old through 8th grade). Patty was involved as class parent, golf outing chair with her husband Tony, and various school activities over the years. Patty, Tony and Georgia reside in West Chester, PA.
Peggy is a native of eastern Pennsylvania, born just 2 miles from the original site of the Montgomery School in Wynnewood, PA. She spent 20+ years in the San Francisco Bay Area leading technical operations and infrastructure teams for organizations such as NASA, Yahoo! Finance, Microsoft as well as several startups. When it was time for their children Julia ('19) and Joshua ('23) to start school, Peggy and her husband Bill, returned to Chester County.
Today, you'll find Peggy busy with one of the many projects at the family's 10 acre working farm, affectionately named Millbridge Farm. She manages operations and renovations for the farm, the happy home for several miniature donkeys and alpacas. Peggy earned her Bachelor degree from Pennsylvania State University and completed post-degree work at Stanford University. Her interest in technical innovations like the Hyperloop and Mars research keep her actively engaged in technology discussions. Her life passions include running, traveling, and family adventures. In fact, you'll regularly find Peggy participating in a Walt Disney marathon, often as companion for friends or family running their first marathon.
Doug is Chief Financial Officer for Ralexar Therapeutics, Inc. and Velicept Therapeutics, Inc., two development stage pharmaceutical companies. In addition, Doug is a founding Partner, CFO and COO of Nexeption, LLC, a company that provides development and management services to its portfolio of pharmaceutical companies. Between 2004 and 2013, Doug held the CFO position at Ception Therapeutics and then Ceptaris Therapeutics. Prior to that, he spent nearly 20 years working at a number of commercial and investment banking institutions in the Midwest. A native of Wisconsin, he earned his bachelor’s degree in Finance, Investments and Banking from the University of Wisconsin – Madison before earning his MBA from the University of Chicago. Doug joined the Montgomery Board of Trustees in 2015 and served on the Finance Committee in the 2015-16 school year. Doug currently serves on the Executive Committee and as Co-Chair of the Strategic Planning Committee. He and his wife, Jean, live in Chester Springs with their son Fritz (Montgomery School ’15), daughter Ava (Montgomery School ’17) and golden doodle Lucy.
Kristine Ilaria is a seasoned executive with experience leading strategy, finance, and acquisitions. She currently works at Stryker, a leading medical technology company, as Director of Strategy & Business Development across its Orthopaedics businesses. She is passionate about causes that improve children’s lives, especially education and healthcare. She holds a B.A. in Psychology & Political Science from Drew University and an MBA in Finance from Seton Hall University.
Kristine and her husband, Dan, reside in the local area with their son, Aaron (Montgomery Class of 2024), and daughter, Emerson (pre-school).
Jeffrey Lipson, the Executive Director of Layer 8 Security, is an experienced entrepreneur, a Reserve Marine Colonel with over 25 years of military service and an avid technologist. After merging his managed IT services firm, SaberSource, with Lantium, Jeff went on to serve an active duty tour with the Marines at the National Security Agency. A career intelligence and communications officer, Jeff is a recognized subject matter expert in the fields of information assurance and cybersecurity, and has a Master’s degree from The Pennsylvania State University. Jeff currently serves on the Board of Directors for Immaculata University’s Cybersecurity Program. Jeff is equally active in philanthropy by serving as an involved member of the Philadelphia Committee for the Marine Corps Scholarship Foundation, and actively supports the National Wounded Warrior Cyber Academy.
Steve Lisk became the tenth Head of School at Lancaster Country Day School in July 2008. Across twenty-seven years in independent schools, he has served also as a division head, department chair, dorm head, classroom teacher, advisor and athletic coach.In his first eight years at LCDS, Mr. Lisk has led the school through strategic enrollment growth, programmatic development, and enhanced professional development. From 2003 – 2008, Mr. Lisk led the Upper School (grades 9-12) at Saint Stephen’s Episcopal School in Bradenton, FL. Earlier, Mr. Lisk served as the History Department Chair at the Kent School in Kent, CT. Mr. Lisk began his school career at Episcopal High School in Alexandria, VA. Starting as a history teacher, coach of football and basketball, and dorm parent, he spent a total of twelve years at this all-boarding school of over 400 students in grades 9-12.
Mr. Lisk attended the University of North Carolina – Chapel Hill, where, as a Morehead Scholar, he majored in Political Science. Later, he also studied at North Carolina State University where he earned an M.A. in History. Mr. Lisk currently serves as the Board Chair for the Association of Delaware Valley Independent Schools (ADVIS) and on the Pennsylvania Association of Independent Schools (PAIS) Commission for Accreditation. With his wife, Kirke, he has two sons, ages 17 and 15.
Staci joined the Montgomery School community in 2013 when she and her family moved from New York City and enrolled her son Crawford in fourth grade. At Montgomery, Staci has served on the Board’s Advancement Committee, and has co-chaired and served as a Class Captain of the Annual Fund.
Currently, Staci is the U.S. College Mentor and Scholarship Coordinator for the Oprah Winfrey Leadership Academy Foundation based in South Africa. Prior to moving to Pennsylvania, she held fundraising positions at charter schools in the South Bronx, New York and administrative and teaching positions at Prep for Prep in New York, Groton School and Concord Academy in Massachusetts and Bowdoin College in Maine. As a volunteer, Staci has been a trustee at Belmont Day School, The Children’s Center of Groton, and Bowdoin College. As a Bowdoin volunteer, she served on her 25th Reunion Committee and as President of the Alumni Council. Since 2014, she has been an Advisory Board member of the Cannonball Foundation, a youth leadership development program for baseball and softball student-athletes. Staci earned her Masters of Arts in Teaching from Brown University and her undergraduate degree from Bowdoin College.
Staci and her husband Chris, the Assistant Head of School at Church Farm School, live on the CFS campus in Exton with their children Crawford, Montgomery School Class of 2018, and Camille, a senior at St. Andrew’s School in Delaware.
Joshua Stewart is an Account Manager at Excellis Health Solutions, a Life Sciences partner company specializing in compliance and ERP consulting. Prior to his current position, Joshua was an Integrated Delivery Systems Account Lead with Merck and Co., focusing on delivering Population Health Centered solutions to major Health Systems in the Philadelphia area. Joshua is a 12-year veteran of the US Navy where he served as a Nuclear-Submarine Officer on two forward-deployed fast-attack submarines. His shore tours included teaching Leadership and Ethics at the US Naval Academy, and standing up a capstone practicum for submarine-bound midshipmen. He holds a BS from the Naval Academy, MS in Human Resource Development and Leadership from the Naval Postgraduate School, and an MBA from Penn State. Joshua acts as a Character Ambassador for the Travis Manion Foundation. Joshua is a 1992 graduate of The Montgomery School. He, his wife Kelly, and children, Lincoln(7) and Jasmine(5), reside in East Norriton, PA.
Christopher Tompkins was appointed Headmaster of The Tatnall School, a PK3-12 independent day school of 600 students, in 2017. Prior to Tatnall, he served as Head of Episcopal Collegiate School and The Perkiomen School. Tompkins also served as Assistant Head of School for Enrollment at Mercersburg Academy.
In his 28-year career in independent schools, Tompkins has served as a middle and upper school teacher, director of admissions and financial aid, and college counselor. Tompkins authored The Croton Dams and Aqueduct, the forward to Behind the Walls, and an article on diversity in Second Home. He has also written numerous articles on independent schools, including a feature article on merit aid and net tuition revenue in the Spring 2016 edition of the NAIS Independent School Magazine. Tompkins served on the NAIS SSS Task Force from 2005-2011, was on the board of ADVIS from 2010 - 2015, and president from 2013 - 2015. In 2013, Tompkins received the Everett E. Gourley Award from the Enrollment Management Association. He is a regular speaker on the independent school circuit and was a founding trustee of the Association of Independent School Admission Professionals.
Tompkins holds a BA from Colby College, his MSSc from the Maxwell School of Syracuse University, and certificates from Cornell, Harvard, Richmond, and the Klingenstein Center of Columbia University.