Happy Birthday G'ma Duke!

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Across
  1. 6. _ Pete the Prospector, Character from Toy Story 2
  2. 7. Traditional Italian waffle cookie
  3. 10. Abuelita, nonna, grand-mere, oma, avo, babcia...
  4. 11. Pedalo, boat propelled by peddling with the feet
  5. 13. Dutch Golden Age artist (1606 - 1669)
  6. 16. / Anniversary of the day on which a person was born
  7. 18. Bat and ball game developed from older English game rounders
  8. 19. Father's mother
  9. 20. / Largest cat species, Panthera Tigris
  10. 21. Form of theater that traveled along the waterways of the USA, especially the Mississippi and Ohio rivers
  11. 23. Henry, American actor (1905 - 1982)
  12. 24. Card game responsible for introducing the Joker to modern packs
  13. 26. / Interstate highway between WA and MA
  14. 28. / Nobility, highest rank below monarch
Down
  1. 1. Brewed beverage made from roasted seeds of an evergreen shrub
  2. 2. Manufacturer of amphibious aircraft, made in Sanford ME
  3. 3. / Tenth song on The Rolling Stones' 1972 album Exile on Main St.
  4. 4. The warmest of the four seasons
  5. 5. Kingdom of Carl XVI Gustaf
  6. 6. A person whose job is to handle records, letters, etc., for another person in an office
  7. 8. / Nordic name, protected by Ing
  8. 9. In German, besserwisser, literally "better knower"
  9. 10. Gabby Douglas, Nadia Comenaci, Olga Korbut et al.
  10. 12. Breeches, item of clothing
  11. 14. Wolverine State
  12. 15. / Motor City
  13. 17. Village and municipality in the Gadabay Rayon of Azerbaijan.
  14. 18. Omar Sharif's card game of choice
  15. 22. _Oil, petroleum company which became part of Exxon
  16. 25. Pseudonym of crossword compiler Roger Squires
  17. 27. Nickname of The Philadelphia Inquirer