Duncan Lyon
Head of School · Allen-Stevenson School
Head of School at Allen-Stevenson School. Listed as an officer, director, or key employee across 1 organization on the Form 990 record.
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Duncan Lyon is Head of School at The Allen-Stevenson School, a private boys school (K-8) on the Upper East Side of Manhattan. He joined Allen-Stevenson in 2022 after 11 years as Head of School at The Carey School in San Mateo, California, and announced his resignation effective July 1, 2027.
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