Solve these clues to fill the grid.
- A musical notation indicating one half step higher than the note named
- 3 Across
- Highly valued northern freshwater fish with lean flesh
- 6 Across
- 5th President of the United States
- 7 Across
- The successful ending of the American Revolution
- 12 Across
- American inventor who designed the first commercially successful steamboat and the first steam
- 14 Across
- A lump or mass of hard consolidated mineral matter
- 15 Across
- An isotonic solution of sodium chloride and distilled water
- 16 Across
- United States actor who was the elegant leading man in many films
- 1 Down
- The head of the Roman Catholic Church
- 2 Down
- English actor of stage and screen
- 4 Down
- A river that rises in the Rocky Mountains in Colorado and flows southeast through Kansas
- 5 Down
- 16th President of the United States
- 8 Down
- English mathematician and physicist
- 9 Down
- An American pioneer and guide and explorer
- 10 Down
- A loud utterance
- 11 Down
- A mountain peak in the St. Elias Range in the southwestern Yukon Territory in Canada
- 13 Down