Across
- 3. First person to perform open heart surgery
- 4. Improved the microphone by making it lighter, small and less expensive
- 7. Poet honored by George Washington
- 8. astronaut
- 9. First woman to hold a pilot's license
Down
- 1. Food preservation
- 2. First man to see the North Pole
- 5. Banneker Urban Planner
- 6. Developed the gold tee