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Who We Are

Three alumni at reunion 2022
Alumni Association president Peter Wallach

The Alumni Association is the perfect way to stay close to fellow Dutchmen and to the larger Collegiate community.

There are countless opportunities to give back to the School, activities and gatherings where alumni can connect, and so much more.  We would love to hear from you for ideas, suggestions, or feedback.  Of course, please also reach out to find ways to get involved!

Peter Wallach ’00
Collegiate School Alumni Association

Alumni Facts

5 Questions for...

Jon Abbott '80

Jon Abbott is a media and social enterprise leader who recently stepped down after fifteen years as President & CEO of WGBH, PBS’s largest producing studio and the nation’s largest community-based public media organization. He’s now “rewiring” after moving with his wife, Shari Malyn, to Los Angeles.

Read More about Jon Abbott '80
Florian Koenigsberger '10

Florian Koenigsberger works at Google, where he led a team that developed and launched Real Tone, a series of software improvements  that  made Google’s camera and image tools work more equitably for people of color, especially those with darker skin tones.

Read More about Florian Koenigsberger '10
Jamaal Lesane ’94

Jamaal Lesane ’94 is Senior Vice President, Legal and Business Affairs, MSG Sports at The Madison Square Garden Company. He lives with his family in Brooklyn.

Read More about Jamaal Lesane ’94
Hal Edgar ’60

For more than 50 years, Hal Edgar has been on the faculty of Columbia Law School, where he is Julius Silver Professor Emeritus of Law, Science and Technology. He also served as a Collegiate Trustee for 12 years. His son, Will Edgar, is a member of Collegiate’s Class of ’99.

Read More about Hal Edgar ’60

Alumni Association and Leadership