Does our conception of a National Park System come from a man named Madison Grant?

I would say he’s better known for his book “The Passing of the Great Race” Though Grant was a close friend of several U.S. presidents, including Theodore Roosevelt and Herbert Hoover, and also was an avid conservationist. He is credited with saving many natural species from extinction, and co-founded the Save-the-Redwoods League with Burnham, Merriam, and Osborn in 1918. He is also credited with helping develop the first deer hunting laws in New York state. He also helped to found the Bronx Zoo, build the Bronx River Parkway, an organizer of the American Bison Society, and helped to create Glacier National Park and Denali National Park.