Boppa is 80!

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Across
  1. 3. favorite brand of golf clubs
  2. 6. likely Boppa's favorite beverage (other than iced tea)
  3. 8. location of the military hospital where he served during Vietnam
  4. 9. brand of his tractor (and gator)
  5. 10. church where Boppa and Nana were married
  6. 13. his undergraduate major at Notre Dame
  7. 17. Boppa's first car, a Chevrolet model
  8. 18. instrument he played the best
  9. 19. a chartruese Volkswagen car that Boppa owned
  10. 20. his father's first name
  11. 21. where Boppa was born
  12. 22. his brother
  13. 24. resort on Gull Lake where they vacationed as a young family
  14. 27. Utah ski resort where they vacationed
  15. 28. current age
  16. 30. the name of the Mayo golf tournament Boppa won
  17. 31. highschool from which Boppa and Nana graduated
Down
  1. 1. where his second son was born
  2. 2. bodily system he specialized in as a doctor
  3. 4. his youngest sister (nickname)
  4. 5. street he lived on in Marshalltown
  5. 7. body part that was broken in a sledding accident
  6. 11. Boppa and Nana's first pet, a psychotic cat gifted to them at a Thanksgiving party
  7. 12. favorite sandwich shop in Marshalltown
  8. 14. where his first son was born
  9. 15. medical colleague and perennial fishing partner
  10. 16. his mother's maiden name
  11. 23. his speech pathologist sister
  12. 25. military branch he served in
  13. 26. was awarded Masterpoints in this card game
  14. 29. NWT lake where he attended annual medical conferences