| 100% | SPIROAGNEW | 10 | His resignation triggered the first invocation of the 25th Amendment |
| 42% | FERDINAND | 9 | His assassination triggered the first World War |
| 40% | ABEL | 4 | His murder elicited the first wail of mourning, in Islamic accounts |
| 38% | SANE | 4 | Not a candidate for the invoking of the 25th Amendment, say |
| 38% | JAMESJOYCE | 10 | The first part of his ''Ulysses'' was published in 1918 |
| 38% | FREE | 4 | With 6-Across, guarantee of the First Amendment |
| 37% | TRACY | 5 | "30 Rock" character, or the first name of his portrayer |
| 37% | RIGHTS | 6 | Subjects of the first 10 Amendments |
| 36% | MATSUI | 6 | Kaz who homered on the first pitch of his MLB career |
| 36% | ATOMICPILE | 10 | The first one of these was built by Fermi and his team in 1942 |
| 36% | RTS | 3 | Subjects of the first 10 Constitutional amendments: Abbr. |
| 35% | ZORRO | 5 | Swordsman associated with a mark shaped like the first letter of his name |
| 35% | CZECH | 5 | Nationality of a poet and playwright who became the first president of his country |
| 34% | MOZART | 6 | Composer who wrote his first concerto at the age of five |
| 34% | KANYE | 5 | Rapper West who dropped the first three letters of his first name |
| 33% | PRESS | 5 | Freedom of the ___ (First Amendment right) |
| 33% | PRESS | 5 | Freedom of the ___ (First Amendment guarantee) |
| 33% | BREAKFAST | 9 | The first meal of the day |
| 33% | DELAWARE | 8 | The First State of the US |
| 33% | KRIS | 4 | Singer whose first name is the first four letters of his last name |
| 33% | HENGIST | 7 | Leader, along with his brother Horsa, of the first Jutish settlers in Britain |
| 33% | TALE | 4 | "Living to Tell the ___," 2002 book by Gabriel Garcia Marquez that was the first volume of his autobiography |
| 33% | MAYDAY | 6 | The first day of the fifth month |
| 33% | TRIASSIC | 8 | The first period of the Mesozoic Era |
| 33% | ONEAD | 5 | The first year of the Common Era |
| 33% | DUODENUM | 8 | The first section of the small intestine |
| 33% | NEHRU | 5 | His sister, Vijaya Lakshmi Pandit, was the first female president of the U.N. General Assembly |
| 33% | NEMEANLION | 10 | Mythological creature slayed and skinned by Heracles as the first of his twelve labours |
| 32% | ELIJAH | 6 | The first name of the Frodo Baggins actor |
| 32% | CHARLES | 7 | The first name of the original Ponzi schemer |