| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | Star Trek V : The Final Frontier | |||
| 2 | TOS | 2 | Journey to Babel | |
| 3 | Star Trek III : The Search for Spock | |||
| 4 | TNG | 3 | Sarek | |
| 5 | TNG | 5 | Unification, Part 1 |
| Film: | Star Trek V : The Final Frontier |
| Series : | TOS Season 2 |
| Episode : | Journey to Babel |
| Film: | Star Trek III : The Search for Spock |
| Series : | TNG Season 3 |
| Episode : | Sarek |
| Series : | TNG Season 5 |
| Episode : | Unification, Part 1 |
| © Graham & Ian Kennedy | Page views : 42,992 | Last updated : 7 Jul 2022 |
