| 2024-11-08 19:57:45 | dipswitch | Added link https://16colo.rs/artist/calvin |
| 2021-05-21 02:21:37 | dipswitch | Set location to Germany |
| 2021-05-21 02:21:32 | dipswitch | Added Calvin as staff member of Howling Mad |
| 2021-05-21 02:10:31 | dipswitch | Added Calvin as a member of SLAM |
| 2021-05-21 02:09:07 | dipswitch | Added credit for Calvin on Slam Art Pack 02/1993: Graphics |