Tracklist Hide Credits
| A | Happy JackWritten-By – Townshend* |
| B | I've Been AwayWritten-By – Entwistle* |
Companies, etc.
- Published By – Fabulous Music
- Published By – Essex Music
Credits
- Executive-Producer – Chris Stamp
- Producer – Kit Lambert
Other versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| 591010 | The Who | Happy Jack (7", Single, Mono, Pus) | Reaction | 591010 | UK | 1966 |
| DP-1522 | The Who = ザ・フー* | The Who = ザ・フー* - ハッピー・ジャック = Happy Jack / 寂しい別れ = I've Been Away (7", Mono) | Polydor | DP-1522 | Japan | 1967 |
| 34444 | The Who | Happy Jack (7", Single, Promo) | Decca | 34444 | US | 1966 |
| 32114 | The Who | Happy Jack (7", Single) | Decca | 32114 | US | 1967 |
| 32114 | The Who | Happy Jack (7", Single) | Decca | 32114 | US | 1967 |
