An innovator in the North American cross-country ski industry, John J. Frado Jr., 67, died last week of brain-injury complications suffered in a December accident, SnoCountry.com reported. A founder of the Cross Country Ski Areas Association, of which his wife, Chris, is president, Frado was also a principal of a consulting company called Nordic Group International. He helped create the National Ski Patrol’s Nordic Division and played a role in the development of 120 trail, resort and...