Mary is a designated Linklater teacher and has taught voice, acting, and improvisation at a variety of institutions including New York University, Syracuse University, Virginia Commonwealth University, University of Virginia, Shakespeare & Company, and the American Shakespeare Center.

Before coming to Iowa, Mary taught at the University of Maryland and coached voice and dialects throughout the District/Maryland/Virginia area at (among others) Arena Stage, Ford’s Theatre, Woolly Mammoth, Roundhouse Theatre, Chesapeake Shakespeare Company, and Signature Theatre. Acting credits include roles with Kristin Linklater's Company of Women, Shakespeare & Company, Live Arts Theatre (Charlottesville), The Open Eye, Ensemble Studio Theatre (New York City) and Chesapeake Shakespeare Company (Baltimore).

Favorite directing credits include The Waiting Room (University of Maryland), Desdemona: A Play About a Handkerchief, Richard II (Mary Baldwin College), A Midsummer Night's Dream, Richard III (Nelson County Shakespeare Festival), 27 Wagons Full of Cotton (University of Mississippi), As You Like It, The Vagina Monologues (Randolph College).

For 16 years she was Shakespeare consultant for the Nelson County Public Schools where she implemented a language arts curriculum for sixth graders and co-authored a teaching manual using Shakespeare to teach poetry and figurative language.