"Bancroft Library. Regional Oral History Office." . . . . . . . . . . . . . . . . . . "Environmental activist, publicist, and prophet"@en . . . . "Biography"@en . . . . . . . . . "Conservationists California Biography." . . "Nature conservation United States." . . "Conservationists." . . "United States." . . "California." . . "Sierra Club." . . "Nature conservation." . . . .