| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TNG | 4 | The Mind's Eye | |
| 2 | TNG | 5 | The Perfect Mate |
| Series : | TNG Season 4 |
| Episode : | The Mind's Eye |
| Series : | TNG Season 5 |
| Episode : | The Perfect Mate |
| © Graham & Ian Kennedy | Page views : 7,600 | Last updated : 7 Jan 2015 |
