Jon Hartz
Jon Hartz is credited as writer on 4 issues and colorist on 3 issues in grailworth's catalog, 6 issues of them across 5 series we value.
Every issue
Archer & Armstrong (1992) 1 issue
Rai (1992) 1 issue
Samuree (1987) 2 issues
Timewalker Yearbook (1995) 1 issue
X-O Manowar (1992) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.