Ghosts
Showcase Presents Ghosts #1 -reprints #1-18
House of Mystery
House of Mystery - DC Treasury Edition (1973) -various reprints
House of Mystery - Bronze Age Omnibus #1, 2 -reprints #174-226
Showcase Presents House of Mystery #1-3 -reprints #174-226
House of Secrets
House of Secrets - The Bronze Age Omnibus #1, 2 -reprints #81-154
Showcase Presents House of Secrets #1, 2 -reprints #81-119
Night Force
DC Comics Presents Night Force #1 - reprints #1-4
Night Force: The Complete Series -reprints #1-14
Phantom Stranger
Showcase Presents Phantom Stranger #1, 2 -reprints #1-41, and a few appearances
Secrets of Sinister House
Showcase Presents Secrets of Sinister House #1 -reprints #1-18
Swamp Thing
Roots of Swamp Thing -reprints Swamp Thing (1972) #1-13
Secret of the Swamp Thing -reprints Swamp Thing (1972) #1-10
Swamp Thing: Dark Genesis -reprints Swamp Thing (1972) #1-10
Swamp Thing The Bronze Age #1, 2 -reprints Swamp Thing (1972) #1-24, and a few appearances
Saga of the Swamp Thing #1-6 -reprints Swamp Thing (1982) #20-64
Weird War Tales
Creature Commandos: A Weird War Tales Collection -reprints Creature Commando stories
Showcase Presents Weird War Tales #1 -reprints #1-21
The Witching Hour
Showcase Presents The Witching Hour #1 -reprints #1-21