Grateful for 70!

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Across
  1. 3. TV episode "Vitameatavegamin"
  2. 4. Norman Vincent Peale book
  3. 6. Song "Your Cheatin'Heart"
  4. 9. E.B.White's children's book
  5. 10. Term for those in dire poverty
  6. 12. Among top 10 male names
  7. 14. Elected President
  8. 15. Popular male HW actor
  9. 19. First U.S.submarine
  10. 20. Quote, "They're gr-r-r-eat!"
  11. 21. Truce fails; conflict continues
  12. 22. Quote, "Lucy I'm home!"
  13. 23. Popular Wham-O toy
Down
  1. 1. Popular movie western
  2. 2. Quote,"Finger-lickin'good!"
  3. 5. Most famous U.S. male actor
  4. 7. Musician sold electric guitars
  5. 8. Popular female HW actress
  6. 11. U.S. detonates world's first
  7. 13. Popular movie musical
  8. 16. Doctor develops polio vaccine
  9. 17. Completed car prototype
  10. 18. Time's Woman of the Year