MLSN is committed to enhancing community life by providing area residents with opportunities to pursue lifelong learning through a wide selection of affordable, stimulating classes, trips and events.


Since 1938, MLSN’s thought-provoking programs have given area residents opportunities to explore diverse topics ranging from literature, history, fitness, computers and technology, public policy and lifestyle issues as well as the chance to connect with people and places worldwide through local and international travel experiences.

Every year, MLSN offers close to 800 affordable non-credit classes, trips and special events spanning over 23 subject areas.

Classes are conveniently scheduled during the day, evenings and some weekends at the Creutzburg Center in Radnor, Tuesday evenings at Lower Merion High School in Ardmore and various locations throughout the Main Line.

Instructors come from local colleges and universities, corporations and businesses, the arts, sciences and other community based organizations.

Designed to fit into busy schedules, Smart Lunches, Hot Topic Happy Hours and Make It a Night series provide opportunities to engage with experts as they discuss such timely topics as climate change, healthcare and the political landscape.

Growth and creativity are intrinsic to MLSN’s mission. Besides deepening an understanding of a subject, students value the social and supportive aspects of classes.


Courses on Offer

Students Registered

Staff Members

Office Hours

Monday – Thursday 9 am to 4 pm
Friday 9 am to 2 pm 

Office Location

The Creutzburg Center at Harford Park
260 Gulph Creek Road
Radnor, PA 19087


260 Gulph Creek Road
Radnor, PA 19087

Class Locations


Withdrawal and Refund Policy

MLSN does not issue refunds as a result of illness, personal emergencies or any other event beyond our control.

To qualify for MLSN credit, you must contact the MLSN office at 610-687-0460 or info@mainlineschoolnight.org. MLSN credit is transferable and is valid for one year. It may be used toward any of our courses. To register using MLSN credit, you must call the office at 610-687-0460.

Withdrawals before class begins: You will receive MLSN credit (less a $15 processing fee), only if we are notified 3 business days before the start of the course.

Withdrawals after class begins: If you must withdraw after the first session has met but before the start of the second session, you will receive a credit for 50% of the course fee (less a $15 processing fee). No credit will be issued for one session classes.

Trips and Travel: You will receive MLSN credit (less a $15 processing fee) only if we are notified by the withdrawal date listed on your registration confirmation.

Cancellation Policy
MLSN reserves the right to cancel courses as necessary. If MLSN cancels a course a full refund will be issued by check within 30 days of cancelation.
Cancellation of classes is often decided based on the number of registrations. Please do not wait until the last minute to register. Your timely registration may make the difference as to whether or not a class runs.

Make-up Classes
Every effort will be made to reschedule classes cancelled due to weather or other emergencies beyond our control.

Textbooks and Supplies
Textbook and supply purchases are non-refundable.

Guest Passes
Guest passes ($20) are available for courses of 4 sessions or more at the Creutzburg Center and Lower Merion High School. Passes must be purchased on-site the day/evening of the first class, subject to space availability and approval of the instructor. The guest pass fee will be credited toward tuition if you register for the course. Some restrictions apply.


Amazing Trips

Happy MLSN Travelers

Trips This Year


If Radnor School District is closed, classes at the Creutzburg Center are cancelled. If Lower Merion School District is closed, classes at Lower Merion HS are cancelled.
Check MainLineSchoolNight.org, MLSN’s Facebook page or call 610-687-0460 for updates.


MLSN is committed to providing equal opportunities to all, without discrimination, regardless of race, color, sex, religion, creed, national origin or disability.
MLSN welcomes students 18 years or older, unless otherwise indicated.

Code of Conduct
It is the responsibility of all MLSN instructors and students to: 1. Foster a community supportive of continued learning; 2. Maintain the safety and welfare of all members of the community; 3. Respect the rights of others, engage in civil discourse and refrain from any unlawful harassment or discrimination.
MLSN reserves the right to remove instructors and students who engage in any disruptive, disrespectful and/or unlawful behaviors.

Students take classes at their own risk and agree to waive and release MLSN administrators and staff from any and all claims.
The opinions and recommendations expressed by instructors are personal. MLSN is not responsible for faculty views.
Access for students with disabilities varies by venue. Please let us know if you have limitations climbing stairs or have difficulty walking. Alerting will help us make adjustments to the extent possible.
Financial Assistance
Financial assistance is available for some classes but does not cover fees for books or supplies.


A Brief History

The beginnings of MLSN in 1938 had more to do with sports than intellectual pursuits. MLSN’s founder, Radnor businessman Harry Creutzburg, wanted to encourage public involvement in the local schools aside from athletics after Radnor High experienced several losing football seasons. When he learned from the Reader’s Digest that a school for adults had started in a high school in New Jersey, he had his inspiration.

Starting with just 11 classes on Monday nights at Radnor High, the organization now offers close to 800 day, evening and weekend non-credit courses, trips and special events spanning over 23 subject areas. What began as an “experiment in adult education” in 1938 has become an iconic institution, inspiring thousands of people to make lifelong learning an integral part of their lives.

In the early years, MLSN classes were held in the evenings first at Radnor High School in Radnor, soon followed by Lower Merion High School in Ardmore, Harriton High School in Bryn Mawr and Conestoga High School in Berwyn. Following a five year search for a daytime venue, MLSN entered into an agreement with Radnor Township in 1970 to lease Harford, the historic summer home of Judge John Innes Clark Hare which had been acquired by the Township under the Open Space Program.

The Hare residence is now known as the Creutzburg Center, named in honor of MLSN’s founder. Today, an expanded curriculum of daytime, evening and weekend classes and special events are offered throughout the year at the Creutzburg Center and evenings at Lower Merion High School during fall and spring terms. Additional classes take place at various sites throughout the Main Line.
In 2018, MLSN celebrates eight decades of providing area residents with opportunities to learn new skills, explore artistic expression, travel near and far and engage in spirited discussion as part of a welcoming learning community. The 80th Anniversary theme:  Grow – Renew – Sustain, pays tribute to this rich legacy of learning.