Rollin Eugene Van Valkenburgh of Everett, who helped perfect a goop to keep hikers' and climbers' feet dry and also built one of Alaska's largest sawmills, died May 3. He was 90.
Van Valkenburgh was born in Nebraska. His father was a missionary pastor on the Rosebud Sioux Reservation.
During the Depression, Van Valkenburgh joined his brother in Seattle, where they supplied feathers for Eddie Bauer down jackets.
He became an avid outdoorsman and skier.
Using the knowledge of beeswax and bear fat mixtures he learned from the Sioux, Van Valkenburgh helped mountaineer Ome Daiber perfect Sno-Seal, a waterproofing agent that was one of the first products sold by the cooperative Recreational Equipment Inc., said his son, Bob Van Valkenburgh.