Dan's and Greta's birthdays

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Across
  1. 1. puzzle
  2. 4. This woman first became a mother on April 17th
  3. 5. Greta shares this in common with her Uncle Dan
  4. 6. Dan's general field of study
  5. 9. an anagram from "Greta" meaning "extent, amount, or intensity considerably above the normal or average"
  6. 10. Dan's favorite gift he received as a toddler
Down
  1. 2. One of Greta's latest accomplishments
  2. 3. Combine the clues of "favorite sports" and "anagram" to find another Great One
  3. 7. One of Dan's favorite sports
  4. 8. This woman first became a mother on April 17th