Amador
Amador is credited as penciller on 20 issues, inker on 20 issues and cover artist on 1 issue in grailworth's catalog, 19 issues of them across 7 series we value.
Every issue
Fright (1988) 2 issues
Grimm's Ghost Stories (1972) 3 issues
Nightmare (1970) 3 issues
Psycho (1971) 1 issue
Psycho Annual (1972) 1 issue
The Twilight Zone (1962) 4 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.