| Answer | Crossword Clue |
|---|---|
| STATE | Only one bears the name of a U.S. president |
| PATENT | Lincoln is the only U.S. president to have one |
| PHD | Woodrow Wilson is the only U.S. president to have one |
| PHD | Woodrow Wilson was the only U.S. president to have one |
| REAGAN | Only U.S. president with a star on the Hollywood Walk of Fame |
| WACO | Only major U.S. city with a radio station whose call letters spell the city's name |
