| 100% | LENO | 4 | Predecessor and successor of 44-Across |
| 71% | ATTLEE | 6 | Predecessor and successor of Churchill |
| 52% | ROTH | 4 | Type of 44 Across |
| 52% | MODERN | 6 | Opposite of 44 Across |
| 51% | OBOTE | 5 | Amin's predecessor and successor |
| 51% | ATTLEE | 6 | Churchill's predecessor and successor |
| 51% | LENO | 4 | O'Brien predecessor and successor |
| 50% | RAMSESII | 8 | Son and successor of Seti I |
| 49% | DONITZ | 6 | Karl __ German admiral and successor of Hitler |
| 49% | ANNE | 4 | Successor of William and Mary |
| 49% | NORTHERN | 8 | With 44-Across, birthplace of Rory McIlroy and Jamie Dornan |
| 49% | LENO | 4 | O'Brien's late-night predecessor and successor |
| 48% | CASPIAN | 7 | *Nephew and successor of King Miraz of Narnia |
| 48% | EURO | 4 | Successor of the mark and markka |
| 48% | CDS | 3 | Successors of records and tapes: Abbr. |
| 48% | CDS | 3 | Successors of LPs and cassettes: Abbr. |
| 48% | CDS | 3 | Successors of LPs and tapes: Abbr. |
| 46% | ERNESTHEMINGWAY | 15 | Author of 17 and 63 Across |
| 46% | MATT | 4 | Creator of Marge and 24 Across |
| 46% | NASA | 4 | Creator of 13 and 16 Across |
| 46% | PERMUTATIONS | 12 | What 20-, 29-, 44- and 53-Across are of each other |
| 45% | IVANA | 5 | Predecessor of Marla and Melania |
| 45% | SKA | 3 | Predecessor of rocksteady and reggae |
| 45% | OIL | 3 | Product of the first parts of 18-, 28-, 44- and 58-Across |
| 45% | HOPPERS | 7 | What the starts of 17-, 26-, 44- and 58-Across all are |
| 45% | TRAIN | 5 | Alternative to avoid the headaches of 17-, 26-, 44- and 58-Across |
| 45% | ALCOTT | 6 | Creator of the characters added in 17-, 28-, 44- and 57-Across |
| 45% | STUD | 4 | Apt description of 18-Across, 32-Across, and 44-Across |
| 45% | FREDRIKBACKMAN | 14 | Swedish author of 19-Across and 44-Across: 2 wds. |
| 45% | OLGA | 4 | Predecessor of Nadia and Mary Lou |