J. M. McFadden

Worlds of If Science Fiction #93

Frederik Pohl with Keith Laumer (Contributor), Bruce McAllister (Contributor), J. M. McFadden (Contributor), John Brunner (Contributor), Fred Saberhagen (Contributor), E.E. "Doc" Smith (Contributor)

Worlds of If Science Fiction #97

Frederik Pohl with Robert Heinlein (Contributor), Gerald Pearce (Contributor), David Kyle (Contributor), Robert F. Young (Contributor), Stephen Goldin (Contributor), J. M. McFadden (Contributor), Keith Laumer (Contributor)