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About Us

General Information

Administrative Office 
Creutzburg Center
260 Gulph Creek Road
Radnor PA, 19087-4519
Phone: 610-687-0460

Hours: Monday-Thursday, 9 am - 4 pm; Friday, 9 am - 2 pm

School Closing

Check or call the Creutzburg Center (610-687-0460). If Radnor School District is closed, classes at the Creutzburg Center are cancelled. If Lower Merion School District is closed, classes at Lower Merion High School are cancelled. Cancellations will also be posted on MLSN's Facebook and Twitter pages.


Main Line School Night offers adults of all ages affordable educational experiences to promote personal enrichment and to enhance the quality of our community. 

General Policies

Main Line School Night is to providing equal opportunities to all, without discrimination, regardless of race, color, gender, religion, creed, national origin or disability.

Main Line School Night welcomes students 18 years or older, unless otherwise indicated.

Main Line School Night is a not-for-profit 501(c)(3) organization supported by tuition income, grants and contributions.

Liability: Students take courses at their own risk and agree to waive and release MLSN administrators and staff from any and all claims.

MLSN instructors come from a wide range professions including education, business, arts, sciences and those whose hobbies have given them exceptional insights into a subject.  MLSN makes no guarantees, expressed or implied that classroom instruction will result in specific gain. The content of  classes is the responsibility of the instructor. Any opinions, suggestions, recommendations or advice given during these courses are those of the instructor and not those of MLSN.

Access: Access for students with disabilities varies by venue. Please let us know if you have limitations climbing stairs or have difficulty walking. Alerting us will help make adjustments to the extent possible.

Financial Assistance: Financial assistance is available for some courses. Assistance does not cover fees for books or supplies. Contact the MLSN Office (610-687-0460) for an application form.

Code of Conduct: It is the responsibility of all MLSN instructors and students to:

  1. Foster an education community supportive of continued adult 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 disruptive, disrespectful and unlawful behaviors.


School Night at a Glance

  • Main Line School Night, the area's largest adult education program, attracts thousands each term with a choice of over 400 weekday, weeknight and weekend non-credit courses.
  • Timely, trendy and familiar courses keep the mind and body fit in the creative arts, computers, cooking, dance, fitness, hobbies & crafts, home & garden, investing & money management, language, music, sports & games, writing and travel.
  • To meet the changing interests and desires of the community nearly one-third of School Night classes are new each term.
  • Our inspiring instructors, many from nearby colleges, keep classes lively and congenial.
  • Courses, ranging from 1-day seminars to 10- or 12-week study programs, are planned to fit into busy schedules.

A Brief History

Founded in 1938 with just 11 classes at Radnor High School, School Night now offers over 400 courses each term spanning 25 subject areas. Our extensive educational network includes a variety of locations, easily accessible from the Main Line and neighboring communities.

Through a wide range of non-credit programs, courses and activities, School Night provides exciting new perspectives for the edification and enjoyment of people seeking affordable lifelong learning opportunities. Our not-for-profit organization is governed by a Board of Directors and is supported by course fees, grants and contributions.

It all started with an active Radnor parent and local businessman, Harry Creutzburg. His inspiration was to offer evening classes at Radnor High School to increase community support for its activities. Lower Merion, Harriton and Conestoga High Schools followed and were more recently supplemented by additional community locations. Leadership fell to David Kreitler, who in his 50 years of service made Main Line School Night a national model of adult education.

The "heart" of School Night is the Creutzburg Center, located in Radnor's Harford Park. Designed by the architectural firm of Furness and Evans, it was the Victorian estate of Judge John Innes Clark Hare. Leased from Radnor Township since 1970, the Creutzburg Center is our administrative office and the location of most daytime and Saturday classes.