| Year | Event |
| 2030 |
| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TOS | 2 | Metamorphosis | Cochrane vanished 150 years before, when he was 87 |
| Series : | TOS Season 2 |
| Episode : | Metamorphosis |
| Comment : | Cochrane vanished 150 years before, when he was 87 |
| © Graham & Ian Kennedy | Page views : 17,697 | Last updated : 12 Dec 2014 |