John MacKay	President, SMUS Parents' Auxiliary
Brian Maclean	Bus Driver
Jennifer Mao	Modern Language Teacher, Senior School
Scott Marks	Governor, SMUS Society Board of Governors
Kristy Martens	Physics Teacher, Senior School
Stanley Mason	After-School Care and Camps Coordinator Senior Assistant Houseparent, Bolton House
Lauren Mavrikos	Counsellor, Senior School
Jake McCloskey '09	Humanities, Engineering and Design Teacher, Middle School Alumnus, Class of 2009
Cameron McClure	Bus Driver
Ruth McGhee	Director of University Counselling Academic Advisor
Melissa McGrath	Educational Assistant, Middle School Assistant Houseparent, Winslow House
Mary McLeish '89	Teacher, Junior School Alumna, Class of 1989
Kerri McLeod	Accounting Associate, Finance
Morgan McLeod	Drama and Theatre Teacher, Senior School Head of Theatre
Sandra McManus	Nurse, Health Centre