Crossword clues for Longest-lived 6 lettersAnswerClueOLDESTLongest-livedNIETYTHREAge at which Gerald Ford, the longest-lived U.S. President, died in 2006NANCEMiddle name of the longest-lived vice presidentBESSLongest-lived first ladyJOEYBISHOPLongest-living member of the Rat PackBESSTRUMANLongest-living First Lady in U.S. history