| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TNG | 3 | Sins of the Father | |
| 2 | Star Trek VI : The Undiscovered Country |
| Series : | TNG Season 3 |
| Episode : | Sins of the Father |
| Film: | Star Trek VI : The Undiscovered Country |
| © Graham & Ian Kennedy | Page views : 8,066 | Last updated : 13 Apr 2014 |
