| 100% | BABBITT | 7 | Last name of 30- and 35-Across |
| 61% | VANPELT | 7 | Last name of Linus and Lucy in 44-Across: 2 wds. |
| 61% | DEVILLE | 7 | Last name of twin toddlers Phil and Lil on 15-Across |
| 61% | PICKLES | 7 | Last name of toddlers Angelica, Tommy, and Dil on 15-Across |
| 61% | FEY | 3 | Last name of 30 Rock star Tina |
| 58% | OBAMA | 5 | Last name of Sasha and Malia |
| 58% | BAGGINS | 7 | Last name of Frodo and Bilbo |
| 58% | ALI | 3 | Last name of boxers Muhammad and Laila |
| 58% | OBAMA | 5 | Last name of teenagers Malia and Sasha |
| 58% | COEN | 4 | Last name of filmmakers Ethan and Joel |
| 58% | GALLO | 5 | Last name of winemakers Ernest and Julio |
| 58% | COEN | 4 | Last name of filmmakers Joel and Ethan |
| 58% | LEE | 3 | Last name of filmmakers Spike and Ang |
| 58% | MILLER | 6 | Last name of Sienna, Ezra and Wentworth |
| 58% | MARA | 4 | Last name of actresses Rooney and Kate |
| 57% | MCFEELY | 7 | Last name of the delivery man on 18-Across/40-Across and "Daniel Tiger's 40-Across" |
| 57% | CRANE | 5 | Last name of TV's Niles and Frasier |
| 57% | TAM | 3 | Last name of Simon and River, on "Firefly" |
| 57% | OLSEN | 5 | Last name of twins Mary-Kate and Ashley |
| 57% | LEE | 3 | Last name of martial artists Bruce and Brandon |
| 57% | DOLE | 4 | Last name of former senators Bob and Elizabeth |
| 57% | GERSHWIN | 8 | Last name of American composers George and Ira |
| 57% | MANNING | 7 | Last name of NFL quarterbacks Eli and Peyton |
| 57% | ALI | 3 | Last name of boxing legends Muhammad and Laila |
| 57% | BENNET | 6 | Last name of Elizabeth in Pride and Prejudice |
| 57% | MARA | 4 | Last name of acting sisters Kate and Rooney |
| 57% | PARKER | 6 | Last name of performers Trey and Sarah Jessica |
| 57% | MARA | 4 | Last name of acting sisters Rooney and Kate |
| 57% | SUGG | 4 | Last name of YouTube personalities Zoe and Joe |
| 57% | CURRY | 5 | Last name of NBA brothers Steph and Seth |