Bob Olsen

Chad Arment with H.G. Wells (Contributor), Rudolph De Cordova (Contributor), W.L. Alden (Contributor), Jack London (Contributor), Herbert D. Ward (Contributor), Bob Olsen (Contributor), Edgar Allan Poe (Contributor), Algernon Blackwood (Contributor), Alexander Harvey (Contributor), Patrick Dutton (Contributor), Martin Swayne (Contributor), George Griffith (Contributor)

Black Cat Weekly #130

Robert Lopresti with Hal Charles (Contributor), C.M. Kornbluth (Contributor), Leslie Waltham (Contributor), Hal Meredith (Contributor), Leslie Karst (Contributor), Dick Donovan (Contributor), Leslie Waltham (Contributor), Bob Olsen (Contributor), John York Cabot (Contributor), Lester del Rey (Contributor)

Bob Olsen, John W. Campbell Jr.