In June 1965, Ev Cooper’s Life Extension Society (LES) offered the opportunity to preserve one person free of charge, stating that "the Life Extension Society now has primitive facilities for emergency short term freezing and storing our friend the large homeotherm (man).
在1965年6月，Ev Cooper的生命延长社团(Life Extension Society LES)提供了一个机会来免费保护一个人，声称“生命延长社团现在已经具备了短期紧急冷冻和储存大型恒温动物(人类)的基本设施。