However , as Nelson Rockefeller 's researcher , Cary Reich , discovered , in the case of Nelson 's voluminous of papers , only about one-third of these files had been processed and released to researchers up to 1996 .
However , as Nelson Rockefeller 's researcher , Cary Reich , discovered , in the case of Nelson 's voluminous 3247 cuft of papers , only about one-third of these files had been processed and released to researchers up to 1996 .