The fund was created by Robert Marshall, founding member of the Wilderness Society. In his will, Marshall left one-half of his estate to aid trace unionism and designated the other half for the establishment of two trusts: The Robert Marshall Civil Liberties Trust, and the Robert Marshall Wilderness Fund which was dedicated to "the preservation of wilderness conditions in outdoor America, including, but not limited to, the preservation of areas embracing primitive conditions of transportation, vegetation and fauna."
From the description of Robert Marshall Wilderness Fund records, 1937-1985. (Denver Public Library). WorldCat record id: 50908665