| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TNG | 3 | Yesterday's Enterprise |
| Series : | TNG Season 3 (Disc 3) |
| Episode : | Yesterday's Enterprise |
| © Graham & Ian Kennedy | Page views : 3,608 | Last updated : 5 Jul 2014 |
