Across
- 4. - South African archbishop
- 6. - DNA structure
- 9. - Education advocate
- 10. - Relativity genius
- 11. - Folk-rock musician
- 12. - Computing pioneer
Down
- 1. - Literature
- 2. - Chinese-American author
- 3. - Radioactivity pioneer
- 5. - Anti-apartheid leader
- 7. - Microfinance pioneer
- 8. - Nonviolent activist