About Josephine Mandamin
Lived 1942 – 2019 (aged 77). Josephine Mandamin was a Canadian environmentalist and activist.
Early life Josephine Henrietta Mandamin (née Trudeau) was born on February 21, 1942. Mandamin was from Wiikwemkoong Unceded Territory. She married Andrew Mandamin and was a mother to eight children, grandmother to thirteen children, and great-grandmother to sixteen children.
From 1948 to 1954 Mandamin attended the St. Joseph' Residential School for Girls in Spanish, Ontario. Mandamin moved to Thunder Bay in 1979. Throughout her career in Thunder Bay, she worked at Kashadaying residence and Mino Bimaadiziwin. She also served as executive director of Beendigen Inc. and Ontario Native Women's Association (ONWA). She retired in 2006. For the Anishinaabe, water is associated with Mother Earth and it is the responsibility of grandmothers to lead other women in praying for and protecting the water. After the initial walk around Lake Superior in 2003 which took her more than a month, the spring became the annual time for the walks to begin as it symbolizes re-growth and renewal of the earth. The work continues through a group called Nibi Emosaawdamajig (Those Who Walk for the Water), led by Shirley Williams and her niece Elizabeth Osawamick.
Mandamin was the Chief Commissioner of the Anishinabek Nation Women's Water Walk Commission, a member of the Great Lakes Guardian Council. Since 2003, Mandamin walked the shorelines of all the Great Lakes, around 17,000 kilometers (10, 560 m).
The Water Walker (book) A book called The Water Walker was written and illustrated by Joanne Robertson in 2017. It is available through Second Story Press. The book follows the story of Grandmother Josephine and her love for Nibi (Anishinaabemowin: "water"); it follows her walking journey with colourful illustrations and pronunciation guides for Anishinaabemowin words.
Later life and death Steamboat Lake in Minnesota at Sunset 2019. Grandmother Mandamin fought for clean water for generations to come. Following her retirement, Mandamin returned to school in 2009. In 2013 Mandamin graduated from Algoma University and Shingwauk Kinoomaage Gamig with a degree in Anishinaabemowin.
Awards, recognition, and legacy Steamboat Lake in Minnesota. Josephine Mandamin advocated for the protection of all bodies of water. In 2012 Mandamin received the Anishinabek Nation Lifetime Achievement Award and in 2016 she received the Lieutenant Governor's Ontario Heritage Award for Excellence in Conservation. On January 26, 2018, Josephine was awarded the Governor General's Meritorious Service Decoration in recognition for her contributions to Indigenous leadership and reconciliation. In 2019, the Great Lakes Guardian Council honored Mandamin's water protection work. In 2019 The City of Thunder Bay recognized the work of Mandamin as part of Women's History Month.
Autumn Peltier, Josephine Mandamin's grand-niece, was inspired to continue her aunt's work by becoming a water protector and advocate.
On June 13, 2024, Canada Post released a series of stamps titled "Indigenous Leaders". One of them is dedicated to Mandamin, marking her cultural contributions.
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Important facts
People in Josephine Mandamin's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Josephine Mandamin's
Frequently asked questions
Who was Josephine Mandamin?
First Nations elder and water protector
When was Josephine Mandamin born?
Josephine Mandamin was born on 21 February 1942.
When did Josephine Mandamin die?
Josephine Mandamin died on 22 February 2019.
What was Josephine Mandamin's occupation?
Josephine Mandamin was an environmentalist and activist.
What nationality was Josephine Mandamin?
Josephine Mandamin was Canadian.
Sources & further reading
· Wikipedia: Josephine Mandamin
Cite this page
APA: Biography.guide. (2026). Josephine Mandamin. https://biography.guide/josephine-mandamin/
MLA: "Josephine Mandamin." Biography.guide, https://biography.guide/josephine-mandamin/.
Chicago: "Josephine Mandamin." Biography.guide. https://biography.guide/josephine-mandamin/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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