Harry Campbell
Harry Campbell is credited as writer on 94 issues, penciller on 90 issues, inker on 90 issues, letterer on 9 issues and others in grailworth's catalog, 44 issues of them across 9 series we value. Characters first seen in issues they wrote or drew include The Fiery Mask, Flash Foster, John Steele and Monako.
Characters they introduced
Every issue
Air Fighters Comics (1941) 1 issue
Amazing Mystery Funnies (1938) 2 issues
Daring Mystery Comics (1940) 1 issue
Keen Detective Funnies (1938) 3 issues
Target Comics (1940) 4 issues
Zip Comics (1940) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.