St. Clair earned her Bachelor of Fine Arts from the Art Academy of Cincinnati and a Master of Fine Arts from the University of Michigan–Stamps School of Art and Design. After graduation, she was a Teaching Fellow at Burren College of Art, Ballyvaughn, Ireland and a Visiting Assistant Professor at Albion Colllege. Currently, St. Clair holds the position of Assistant Professor of Art at Davidson College. Her work has been exhibited at the Burren College of Art, Ireland; Museum of Contemporary Art, Detroit, MI; Zhou B. Art Center, Chicago, IL; Charles Danforth Gallery, University of Maine, Augusta; Dalton Gallery, Rock Hill, SC; Greenhill Center for NC Arts, Greensboro, NC; and Northern Kentucky University, Highland Heights, KY. She has received numerous awards and honors including Best in Show, Annual Alumni Exhibition, University of Michigan; and the 2019 Young Affiliates of the Mint Choice Award, for her work in Coined in the South, Mint Museum of Art, Charlotte, NC. St. Clair has been awarded residencies at the Virginia Center for Creative Arts, Amherst, VA; Vermont Studio Center, Johnson, VT; Penland School of Crafts, Penland, NC; and the Porcupine Mountains Wilderness State Park, Ontonagon, MI.