Tanya Lee	Humanities Teacher, Middle School
Jennifer Leyh	Grade 1 Teacher, Junior School
Graham Lilly	Economics Teacher, Senior School
Ally Lord	Assistant to the Director of Senior School and Deputy Head of School and Exam Coordinator
Rita Lord	Chief Financial Officer
Tina Lum	Athletics Coordinator, Senior School
Sarah Lund	Admissions Associate, Junior School
David Lynch '98	Social Studies Teacher, Senior School Alumnus, Class of 1998
Susan MacDonald	English Teacher, Senior School
John MacKay	President, SMUS Parents' Auxiliary
Jennifer Mao	Modern Language Teacher, Senior School
Scott Marks	Treasurer, SMUS Society Board of Governors
Kristy Martens	Physics Teacher, Senior School Assistant Houseparent, Symons House
Stanley Mason	After-School Care and Camps Coordinator Assistant Houseparent, Bolton House
Lauren Mavrikos	Counsellor, Senior School