北方人種
Historian Jonathan Spiro has argued that Grant's interests in conservationism and eugenics were not unrelated: both are hallmarks of the early 20th-century Progressive movement, and both assume the need for various types of stewardship over their charges. In Grant's mind, natural resources needed to be conserved for the Nordic Race, to the exclusion of other races. Grant viewed the Nordic race lovingly as he did any of his endangered species, and considered the modern industrial society as infringing just as much on its existence as it did on the redwoods. Like many eugenicists, Grant saw modern civilization as a violation of "survival of the fittest", whether it manifested itself in the over-logging of the forests, or the survival of the poor via welfare or charity.