| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TNG | 3 | Hollow Pursuits | |
| 2 | TNG | 2 | The Outrageous Okona | |
| 3 | TNG | 6 | Rascals | |
| 4 | TNG | 5 | Time's Arrow, Part 1 | |
| 5 | STP | 2 | The Star Gazer | |
| 6 | STP | 2 | Watcher |
| Series : | TNG Season 3 |
| Episode : | Hollow Pursuits |
| Series : | TNG Season 2 |
| Episode : | The Outrageous Okona |
| Series : | TNG Season 6 |
| Episode : | Rascals |
| Series : | TNG Season 5 |
| Episode : | Time's Arrow, Part 1 |
| Series : | STP Season 2 |
| Episode : | The Star Gazer |
| Series : | STP Season 2 |
| Episode : | Watcher |
| © Graham & Ian Kennedy | Page views : 28,925 | Last updated : 7 Jul 2022 |
