| 100% | FITT | 4 | Gerry —, co-founder and first leader of the SDLP in Northern Ireland in 1970 |
| 86% | FITT | 4 | Gerry —, co-founder and first leader in 1970 of the SDLP in Northern Ireland |
| 54% | IANPAISLEY | 10 | Northern Ireland religious and political leader who died in 2014; co-founder of the Free Presbyterian Church of Ulster |
| 45% | LINACRE | 7 | Thomas —, chief founder and first president of the Royal College of Physicians in London |
| 40% | ONTHELINE | 9 | In jeopardy ... and where the first words of the answers to starred clues can be found |
| 40% | AUGUSTUS | 8 | Founder and first emperor of the Roman empire |
| 39% | RIA | 3 | Long, narrow inlet of the sea coast found especially in SW Ireland and NW Spain |
| 39% | MAN | 3 | Isle of —, island in the Irish Sea between Cumbria and Northern Ireland |
| 38% | SAMUELGOMPERS | 13 | Founder and first president of the American Federation of Labor: 2 wds. |
| 36% | SEALE | 5 | Texan Bobby, co-founder of the Black Panthers and defendant in the "Chicago Eight" |
| 36% | DEANNA | 6 | Brett Favre's wife and co-founder of the Favre 4 Hope Foundation in 1995 |
| 36% | IDA | 3 | ___ B. Wells, civil-rights leader who founded one of the first Black women’s suffrage groups in the U.S. |
| 36% | DRHOOK | 6 | Leader of the Medicine Show, in 1970's rock |
| 36% | ROCKIGUANA | 10 | The Jamaican ___, a lizard that is one of the rarest creatures, and was declared extinct before being found again in 1970: 2 wds. |
| 35% | JANET | 5 | First name of the original Wasp in "Ant-Man and the Wasp" |
| 35% | ANNLEE | 6 | Founder of the first Shaker colony in America |
| 34% | DZERZHINSK | 10 | City in Russia on the Oka River named after the first leader of the Cheka |
| 34% | OLIVERREED | 10 | Actor whose first name is the title of a Best Picture he co-starred in, and whose last name is that film's director |
| 34% | COLERAINE | 9 | Town in Northern Ireland near the mouth of the River Bann |
| 34% | XXXXX | 5 | Shape of the first and last letters in the Subway logo |
| 34% | MAO | 3 | Leader of China in the 1950s, 1960s, and 1970s |
| 34% | BANG | 4 | Sound suggested by the first letters of the words in 17-, 26-, 44- and 58-Across |
| 34% | TERRYBRADSHAW | 13 | NFL quarterback who was the first overall draft pick in 1970 and was inducted into the Pro Football Hall of Fame in 1989 (2 wds.) |
| 34% | III | 3 | George __, first king of the United Kingdom of Great Britain and Ireland |
| 34% | CAIN | 4 | First son of Adam and Eve in the Old Testament |
| 34% | MICHELLE | 8 | ___ Obama, former first lady of the United States who cameoed in an episode of "Parks and Recreation" |
| 34% | CALLIEHOUSE | 11 | Leader of the National Ex-Slave Mutual Relief, Bounty, and Pension Association, chartered in 1897 |
| 34% | NEWRY | 5 | City in Northern Ireland on the border between County Down and County Armagh |
| 33% | HENGIST | 7 | Leader, with brother Horsa, of the first Jutish settlers in Britain |