Dan St. John
Dan St. John is credited as writer on 7 issues in grailworth's catalog, 7 issues of them across 3 series we value. Characters first seen in issues they wrote or drew include Harry Diamond, Captain Tom Kelly, Jennifer Burke and Jason Wayne.
Characters they introduced
Every issue
Americomics Special (1983) 1 issue
Captain Paragon (1983) 4 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.