About Jim Bridwell
Jim Bridwell was an American rock climber and mountaineer, active from 1965 in Yosemite Valley, but later in Patagonia and Alaska. He was noted for pushing the standards of both aid climbing and big wall climbing, and later alpine climbing. He wrote numerous articles on climbing and developed several important pieces of aid climbing equipment. Bridwell was an apprentice to Royal Robbins and Warren Harding, and later the unofficial leader of the Stonemasters.
Biography source:
Wikipedia