David Wright O’Brien

Forty Days Has September & The Devil's Planet

Year unknown Milton Lesser and David Wright O’Brien

Horror Gems, Volume Eight, Algernon Blackwood and Others

Year unknown Algernon Blackwood, C. C. MacApp, August Derleth, David Wright O’Brien, Arthur J. Burks, Charles E. Fritch, Marjorie Murch Stanley, Gregory Luce, Lee Francis, Ivar Jorgensen, Len J. Moffatt, and Justin Dowling

Horror Gems, Volume Thirteen, Clark Ashton Smith and Others

Year unknown Allison V. Harding, Clark Ashton Smith, David Wright O’Brien, Gregory Luce, Edmond Hamilton, Don Wilcox, H.P. Lovecraft, Seabury Quinn, Joseph Payne Brennan, and Paul W. Fairman

Horror Gems. Volume Twelve

Year unknown Allison V. Harding, Fritz Leiber, David Wright O’Brien, Jack Sharkey, William P. McGivern, Carl Jacobi, David Henry Keller, Seabury Quinn, Michael Shaara, and Rog Phillips

Once Is Enough

Once Is Enough

Year unknown

Return of Creegar & Eight Keys to Eden

Year unknown David Wright O’Brien and Mark Clifton

Science Fiction Classics #7

Science Fiction Classics #7

Year unknown Edgar Rice Burroughs, David V. Reed, William P. McGivern, David Wright O’Brien, and Robert Moore Williams

Science Fiction Gems

Year unknown Edmond Hamilton, Murray Leinster, Jack Williamson, Fritz Leiber, William Tenn, Alfred Coppel, Henry Slesar, David V. Reed, Chester S. Geier, and David Wright O’Brien

Science Fiction Gems, Volume Fourteen

Year unknown Robert Moore Williams, Henry Slesar, Clifford D. Simak, Robert Abernathy, David Henry Keller, Isaac Asimov, Jack Sharkey, Roger D. Aycock, Alfred Coppel, David Wright O’Brien, Harl Vincent, Rog Phillips, Jerry Sohl, and Fletcher Pratt

Secret of the Lost Planet & Television Hill

Year unknown David Wright O’Brien and George McLociard

Squadron of the Damned

Squadron of the Damned

Year unknown

The David Wright O'Brien MEGAPACK

Year unknown David Wright O’Brien and Von Rothenberger