Kelly Preston , John Travolta 's wife , to address issues on grief . Preston and Travolta 's 16-year - old son Jett arrived in January . Other guests included Elizabeth Edwards , Susan St. John .
Kelly Preston , John Travolta 's wife , to address conference on grief . Preston and Travolta 's 16-year-old son Jett died in January . Other speakers include Elizabeth Edwards , Susan St. James .