| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TNG | 7 | Parallels | |
| 2 | SNW | 3 | What is Starfleet? |
| Series : | TNG Season 7 |
| Episode : | Parallels |
| Series : | SNW Season 3 |
| Episode : | What is Starfleet? |
| © Graham & Ian Kennedy | Page views : 16,595 | Last updated : 13 Apr 2014 |
