| 2023-12-01 19:02:34 | Cthulu | Added credit for Grymmjack on ADVENT23.ZIP: Graphics (ANSI art) |
| 2023-05-12 06:45:51 | menace | Added credit for Grymmjack on MIST0223.ZIP: Graphics |
| 2023-05-10 21:52:27 | Cthulu | Added credit for Grymmjack on MIST0523.ZIP: Graphics (pixelart) |
| 2022-05-04 19:39:37 | Cthulu | Added credit for Grymmjack on MIST0522.ZIP: Graphics (hirez) |
| 2021-10-25 21:06:50 | Cthulu | Added credit for Grymmjack on MIST1021.ZIP: Graphics (PETSCII, hirez) |
| 2021-10-25 00:40:36 | dipswitch | Added credit for Grymmjack on Used #4: Graphics (ANSI) |
| 2021-10-24 21:42:19 | dipswitch | Added credit for Grymmjack on Used #5: Graphics (ANSI) |
| 2021-10-24 21:33:11 | dipswitch | Added credit for Grymmjack on Used #666: Graphics (ANSI) |
| 2021-10-05 00:51:13 | dipswitch | Updated Grymmjack's membership of Zombie: set as ex-member |
| 2021-10-05 00:51:04 | dipswitch | Added Grymmjack as a member of Zombie |
| 2021-10-01 19:09:16 | Cthulu | Added credit for Grymmjack on MIST0921.ZIP: Graphics (pixelart (Pikachu)) |
| 2021-09-23 22:57:22 | dipswitch | Added Grymmjack as staff member of Guided By Voices |
| 2021-07-14 03:38:49 | Cthulu | Added credit for Grymmjack on MIST0721.ZIP: Graphics (ANSI art, hirez) |
| 2021-05-04 18:12:33 | Cthulu | Added credit for Grymmjack on MIST0521.ZIP: Graphics (ANSI art (Star Wars)) |
| 2021-03-01 18:33:39 | Cthulu | Updated Grymmjack's membership of Hype: set as ex-member |
| 2021-03-01 18:33:33 | Cthulu | Updated Grymmjack's membership of Centers Of Attention: set as ex-member |
| 2021-03-01 18:33:26 | Cthulu | Updated Grymmjack's membership of FUEL: set as ex-member |
| 2021-03-01 18:33:20 | Cthulu | Updated Grymmjack's membership of Blade: set as ex-member |
| 2021-03-01 18:33:13 | Cthulu | Added Grymmjack as a member of Mistigris |
| 2021-03-01 18:10:47 | Cthulu | Added credit for Grymmjack on MIST0221.ZIP: Graphics (ANSI art, hirez) |
| 2021-02-11 01:14:41 | dipswitch | Added Grymmjack as staff member of Sector 7 |
| 2021-01-29 20:19:54 | Cthulu | Added credit for Grymmjack on MIST0121.ZIP: Graphics (ANSI art, hirez) |
| 2019-12-08 16:10:20 | sensenstahl | Added Grymmjack as a member of Hype |
| 2019-12-05 16:29:23 | sensenstahl | Added Grymmjack as a member of Centers Of Attention |
| 2019-03-03 06:41:21 | sensenstahl | Added Grymmjack as a member of Blade |
| 2018-08-08 04:46:53 | sensenstahl | Added credit for Grymmjack on Sector 7 BBS (2): Code, Graphics (Ascii) |
| 2018-02-25 22:39:14 | se7en | Added credit for Grymmjack on Fuel Pack 25: Graphics |
| 2017-07-20 22:59:58 | se7en | Added Grymmjack as a member of Fuel |
| 2017-07-20 22:54:55 | se7en | Added credit for Grymmjack on Fuel Pack 22: Graphics |
| 2015-11-22 20:51:11 | se7en | Updated Grymmjack's membership of Blocktronics: set as ex-member |
| 2014-11-02 14:38:32 | Cthulu | Added credit for Grymmjack on MIST1014.ZIP - The First Twenty Years: Graphics (ANSI) |
| 2013-08-29 10:59:21 | dipswitch | Set location to Michigan, United States |
| 2013-08-29 10:59:17 | dipswitch | Set real name |
| 2013-08-29 10:58:59 | dipswitch | Added Grymmjack as a member of Blocktronics |