Mystery of Hanksgiving

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Across
  1. 3. Last president born in the colonies
  2. 6. Hank Green founded this online video bonanza in 2010
  3. 9. 1611 New World settlement named for Henry, Prince of Wales
  4. 11. Pope whose fight with Henry VIII led to the English Reformation
  5. 14. Henry John Deutschendorf Jr.’s stage name
  6. 15. Character Hank Zipzer's learning disorder
  7. 16. Hank Dieckhaus’ favorite candy
  8. 17. Voltaire's 1723 epic poem
  9. 19. Tom Hanks collected 250 of them
  10. 22. Henry Fonda in 12 Angry Men
  11. 23. Henry Kissinger’s USSR policy
  12. 25. Successor to William Henry Harrison
  13. 27. Henry in Milan
  14. 29. Hank Aaron's longtime team
  15. 30. Stage name of Henry Olusegun Adeola Samuel
  16. 33. DC Comics villain with first name Hank
  17. 35. Age at which Henry Winkler won his first Emmy
  18. 38. Hank the Cowdog's locale
  19. 41. Online production company helmed by Hank Green
  20. 43. 2013 role for actor Henry Cavill
  21. 45. Henry David Thoreau’s magnum opus
  22. 46. Hank Schrader's profession in Breaking Bad
  23. 47. Henry in Puerto Rico
  24. 49. Finding Dory sea creature named Hank
  25. 50. Idiom coined to describe an infamous Henry Winkler scene
  26. 51. Henry Fonda in Grapes of Wrath
Down
  1. 1. Sir Henry Cotton’s chosen profession
  2. 2. SI unit of inductance
  3. 4. Famous Fauvist
  4. 5. Nickname for Dr. Henry Jones, Jr.
  5. 7. North Carolina town home to Hank Dieckhaus
  6. 8. Originator of the 40-hour work week
  7. 10. Classic Detroit Tigers slugger Hank
  8. 12. Famous Hank who created 2D glasses
  9. 13. Feeding mechanism used in the Henry repeating rifle
  10. 15. Comic by cartoonist Henry Ketcham
  11. 18. Henry who wrote The Turn of the Screw
  12. 20. Subject of a 30-page manuscript by Hank Dieckhaus
  13. 21. Famous Hank with ancestral ties to Lincoln
  14. 24. Nuclear power company founded by William Henry Gates III
  15. 26. Former Arsenal striker
  16. 28. Scholastic term for a group of Shakespeare's history plays
  17. 31. Example of Henry’s Law in action
  18. 32. The second half of Hank Dieckhaus’ PhD field of study
  19. 34. Institute formerly employing Hank Dieckhaus
  20. 36. First product of Henry J. Heinz’s company
  21. 37. Hank Dieckhaus’ current favorite book
  22. 39. Superhero name of Marvel Universe’s Hank Pym
  23. 40. Henry the Green Engine's lookalike
  24. 42. Henrik Lundqvist's 2012 prize
  25. 44. Henry Wadsworth Longfellow poem beginning “Listen, my children, and you shall hear”
  26. 48. Prince Harry's historic county