1) Adjective for methuselah 2) Born first 3) Describing a doyen 4) Established first 5) Farthest from birth 6) First 7) First born 8) First in line for the throne 9) First in time 10) First of the children 11) From furthest back 12) Guinness adjective 13) Guinness Book superlative 14) Guinness superlative Found on https://www.crosswordclues.com/clue/oldest