List of St. Mark's School (Massachusetts) Alumni - A

A

• Charles Francis Adams IV, businessman and philanthropist associated with Woods Hole Oceanographic Institute
• Samuel A. Adams, '51, crusading CIA official who exposed bad Vietnam intelligence of Defense Department
• Mark Albion, Harvard Business School Professor, American Entrepreneur
• Matthew Tobin Anderson '86, writer, winner of National Book Award
• A. Watson Armour III, American businessman and philanthropist
• Philip D. Armour III, American businessman
• Lester Armour, American businessman
• Robert Douglas Armstrong, founder of the Bank of St. Croix