


Our Therapists
Rebekkah Williams, RP
Rebekkah Williams is a Registered Psychotherapist and Expressive Arts Therapist specializing in the treatment of trauma in practice for over thirty four years. Co-founder and Co-director of Nemesis, she is also a Traumatic Incident Reduction Facilitator and LSR Facilitator, and Therapist at Neyaashiinigmiing First Nation, NIHB provider. She specializes in healing from sexual abuse, violent crime, internet exploitation, sex trafficking, abuse, and other traumatic events. She has certificates from Queen’s University in Business Management and Human Resources Management. Rebekkah has facilitated countless workshops, professional development, strategic planning and policy development for non profit agencies.
Rebekkah’s undergrad was at the University of Toronto, and a three year Graduate Diploma in Expressive Art Therapy from CREATE Institute. Rebekkah is registered with the College of Registered Psychotherapists of Ontario and holds memberships in good standing with professional organizations specializing in trauma treatment.
In addition to her therapeutic practice, Rebekkah is the author of Front Porch Mannequins, a work of fiction, published in both paperback and Ebook, and Glass Houses, a women’s studies text – along with numerous articles and published works. She is the author of several therapeutic group curriculum for both boys and girls at risk at Kikendaasogamig Elementary School, Neyaashiinigmiing First Nation. Rebekkah’s journalism background included staff music writer at The Georgia Straight, Vancouver’s Arts and Entertainment Weekly and creative side ventures such as a university radio show, video and print PSA’s. She also graduated from the Humber School for Writing and is a member of the Writer’s Union of Canada and PEN Canada.
Bonita Johnson deMatteis, RP
Bonita Johnson deMatteis is a Registered Psychotherapist and a Traumatic Incident
Reduction Facilitator and LSR Facilitator. She uses Narrative therapy and expressive art and play modalities that focus on the treatment of trauma. in practice for over thirty-one years.
Co-founder and Co-director of Nemesis Group, this was a perfect and creative realization for her skills as a former frontline crisis worker and sexual assault counsellor.The rise of internet exploitation, abuse, and other traumatic events are now approached in a respectful one on one format. Together with the past 14 years of Nemesis Group and her years in the VAW, (Violence Against Women) field, Bonita has 29 years in this practice.
Bonita’s undergrad was at Western University in psychology. She also holds a Certificate from Ryerson Poly Tech in Basic and Family Mediation, a Diploma with the National Guild of Hypnotists as a Certified Consulting Hypnotist and a a Diploma from
Georgian College in Creative Design, on the Deans List.
Bonita is registered with the College of Registered Psychotherapists of Ontario and holds memberships in good standing with professional organizations specializing in trauma treatment.
Bonita is a nationally recognized visual artist, writer, designer and illustrator. An accomplished portrait artist, Bonita has also written and illustrated many children’s
books, two of which are autobiographical telling her experience of being a bi-racial child of the 60’s. “Going North” and “Threads: Piecing together the Underground Railroad.”
Her book “Lest We Forget”, was the recipient of the Ontario Museum Association Award
of Merit for her writing and design. Bonita’s design of The Black History Cairn has been
internationally recognized.
She was born in London Ontario and has lived in the Owen Sound area for the past 40
years. She is an honours graduate from Georgian Colleges Art and Design program and
a recipient of the Dean’s Award 1998.
Just for fun, she loves to ride horses and instruct fitness and dance classes!

