| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TNG | 2 | The Emissary | |
| 2 | TNG | 4 | Reunion |
| Series : | TNG Season 2 |
| Episode : | The Emissary |
| Series : | TNG Season 4 |
| Episode : | Reunion |
| © Graham & Ian Kennedy | Page views : 21,200 | Last updated : 21 Sep 2005 |
