Margaret McKenny (April 17, 1885 - August 1969) was an American landscape architect, naturalist, activist, and writer[1] who was referred to as the "Grand Dame" of Northwest mushrooming.
[7][8] McKenny led several efforts to preserving local open spaces in Olympia from private development.
Another notable success is Watershed Park, a 153 acres (62 ha) temperate rainforest in the central core of the city.
McKenney founded a group called "Citizens of the Future" which circulated a petition to save the park from development, and was ultimately successful because of a trial in the Washington Supreme Court.
In the longterm, McKenny's activism resulted in the establishment of the Billy Frank Jr. Nisqually National Wildlife Refuge.