We Are All Treaty People

Mary Culbertson

Treaty Commissioner of Saskatchewan

The Treaty Commissioner is a member of the Keeseekoose First Nation and with her in January 2018 appointment she became the first woman Treaty Commissioner of Saskatchewan.  She has over 20 years of professional experience working in federal, provincial and territorial governments and with Indigenous organizations. This includes Public Safety & Emergency Preparedness Canada, Corrections Services Canada, the Government of Saskatchewan, the Federation of Sovereign Indigenous Nations, Sunchild Law, and various Tribal Councils. Over the years, Mary has been an active volunteer in many community organizations and engaged in advocacy work with Indigenous communities, families and grassroots organizations.

Mary holds a Juris Doctor of Law from the University of Saskatchewan. She grew up seeing both worlds on her family farm north of Pelly SK., across the river from Fort Livingston site and her Nation of Keeseekoose. She is the granddaughter of late Senator Roy Musqua and Nellie Brass. She is a mother of four grown children and proud Kokum to 4 grandchildren. She firmly believes the teachings she learned from her family, her aunts, uncles, cousins and parents have shaped her journey, her knowledge and her determination.   

Trish Greyeyes

Executive Director

Trish Greyeyes is the Executive Director of the Office of the Treaty Commissioner. She is a member of Muskeg Lake Cree Nation, Treaty Six Territory, grew up on Beardy’s & Okemasis First Nation and received most of her formal education in Duck Lake. She is a proud mother of two adult daughters.   

Trish attended University of Saskatchewan and obtained a Bachelor of Arts degree, majoring in Native Studies, before completing her Bachelor of Laws degree at the University of Saskatchewan.

Throughout her post-secondary education, Trish was actively involved in her community.  She was on the executive committee for her community association, and she helped coach her daughters’ soccer teams.  Trish would bring her children to Muskeg Lake’s cultural camps each summer in order to ensure her daughters were connected to their community and to their culture.  Trish was also actively involved in the university – she was the President of the Aboriginal Law Students’ Association, a member of the Pro Bono Students’ Association, and an Assistant Manager at Community Legal Assistant Services for Saskatoon Inner City Inc. (CLASSIC). 

Trish articled in Prince Albert and was the vice-president of the Prince Albert Bar Association.  Trish worked on civil law, family law, and criminal law files. She worked in the northern court points and in the Cree court circuit before working for Legal Aid Saskatchewan in criminal law. For the last five-and-a-half-years Trish has worked for the Ministries of Justice and Social Services.

This isn’t Trish’s first time working with the Office of the Treaty Commissioner, while in university, she was a summer student at OTC working on Teaching Treaties in the Classroom - A Treaty Resource Guide for Kindergarten to Grade 6.

Amy Seesequasis

Director of Speakers Bureau
Amy is a Cree, with Métis lineage, from the Beardy’s & Okemasis’ First Nation, Treaty 6. She attended the First Nations University of Canada, Saskatoon Campus, where she received her Bachelor of Arts in 2011; majoring in Indigenous Studies and minoring in Indian Fine Art. She credits FNUniv for strengthening her cultural identity and pride.
Amy has a wide range of work experience that she brings to the OTC. Since completion of her degree she has worked for the Correctional Service of Canada, as well as for the Department of Native Studies at the University of Saskatchewan.
She is the mother of three children and her family is her main priority. She credits her children for all that is good and positive in her life, as well as her life successes. Her children are her motivation in the work she does for the Office of the Treaty Commissioner
Amy is the Manager of, and dances for, the Creeland Dancers, who specialize in a fusion of Metis jigging and square dancing. Her interests are reading, writing, painting, beadwork, dancing, outdoor activities, history, Treaties (education, awareness, promotion, advocacy) and anything that assists in enriching her and her family’s identity as Nehiyawak.  
In her second year of university, Amy set a goal to one day work with Treaties and for the Office of the Treaty Commissioner. Today she is living that dream and is an example that goals can be reached through dedication and determination.

Rhett Sangster

Director, Reconciliation and Community Partnerships

Rhett Sangster works with the Office of the Treaty Commissioner, coordinating efforts to engage both the public and community leaders on the nature of reconciliation in Saskatchewan. This process aims to work with as many partners as possible to identify shared priorities and a broadly-owned vision for the future.

Rhett grew up in Treaty 6 territory (Tisdale, Saskatchewan) and is a graduate of the University of Saskatchewan (B.A. Political Studies). He moved to Ottawa in 2000 to become a Foreign Service Officer and has spent the majority of his career working on issues of international conflict and peacebuilding. He spent three years posted as a diplomat in Turkey, led a successful effort to improve dialogue and cooperation between Afghan and Pakistani border officials, and coordinated Canadian international policy on mediation, peace processes and the effects of war on women and girls. Rhett accepted a Rotary Peace Fellowship in 2012 and graduated in 2014 with a Masters in International Development Policy from Duke University. His thesis focused on conflict prevention and reconciliation in Saskatchewan.

Rhett is married and has three young children.

Angie Merasty

Project Coordinator – Youth in Service

Angie is currently working with the Office of the Treaty Commissioner as the Project Coordinator – Youth in Service. The project runs until March 2020 and her work involves the overall coordination of promoting the civic engagement of Indigenous and non-Indigenous youth, to enhance and build upon the efforts of OTC, particularly related to reconciliation.

Angie was born and raised in Pelican Narrows, currently lives in Saskatoon, SK and she is fluent in the Cree language.

She has been a Ministerial Assistant to several Cabinet Ministers and Special Advisor to the Premier of Saskatchewan with the Government of Saskatchewan; a Workforce Planning Specialist, Human Resources for Cameco Corporation; Band Councillor for the Peter Ballantyne Cree Nation where she held the portfolio for youth; Victim Services Coordinator within the Pelican Narrows RCMP Detachment for the NorthSask Victim Services; Project Manager for the Northeast Youth Violence Reduction Partnership; and most recently she worked as a Jordan’s Principle Coordinator for PBCN Health Services.


Sheldon Krasowski

Research/Archives Coordinator

Sheldon Krasowski was born in Treaty Six territory in Saskatoon and attended the University of Saskatchewan and received a BA with a major in Indigenous Studies from the University of Saskatchewan in 1995. In 1998 he received an MA in Indigenous Studies from Trent University and completed the thesis “A Numiany” The Prayer People and the Pagans of Walpole Island First Nation.” In 2011, he received a PhD in history from the University of Regina for the dissertation, “Mediating the Numbered Treaties: Eyewitness Accounts of the Numbered Treaties Between the Crown and Indigenous Peoples, 1871-1876.” This research became the basis for No Surrender: The Land Remains Indigenous which was published by the University of Regina Press in 2019 and includes a foreword by Dr. Winona Wheeler.

Dr. Krasowski has taught in both history and Indigenous Studies departments at First Nations University of Canada; Vancouver Island University; the University of Saskatchewan; Blue Quills First Nations College; the University of Calgary; and Athabasca University. He has completed research for the Assembly of Manitoba Chiefs, the Metis Nation of Ontario, and is currently a co-investigator on a research project with the Montreal Lake Cree Nation on the Treaty 6 Adhesion of 1889. Sheldon began his research journey with the office of the Treaty Commissioner in 1998, and after a hiatus of almost 20 years is currently the coordinator of research and archives at the Office of the Treaty Commissioner in Saskatoon.

Charmaine Gardiner

Administrative Assistant, Reconciliation

Charmaine joined the OTC as Administrative Assistant, Reconciliation in April 2017 as part of a partnership with the City of Saskatoon.

She loves work on Reconciliation because she likes to see the positive change in the community, while bettering the lives of youth, who are our future leaders of tomorrow. Her personal call to action is Listen, Learn, Show Up and Share.

Charmaine was born and raised in in Ile a la Crosse, but has lived in Saskatoon on and off since 1995. She has two children, Bryden, 22, and Desiree, 18. She loves to spend time with her partner, Clarence, and her family -- and she likes a good read or drama series.