This exhibition tells the story of Mabel “MB” Williams, an extraordinary, ordinary woman who became devoted to national parks and engendered that devotion in others. Historian Alan MacEachern documents her role in shaping the philosophy of Canada’s Dominion Parks Branch (the precursor to Parks Canada) in the early to mid-twentieth century. Digitized photographs and letters from Williams’s life, her guidebooks and other publications, and audio interviews with Williams herself reveal her influence on, and love for, Canada’s national parks.