"The acknowledgments appearing on page 723 constitute an extension of the copyright page." on copyright page. These are the individual novel copyrights and publication data.
Long Ago and Far Away ends with Richard A. Lupoff (over) Berkley, California (over) January 16, 2009.
Under Observation: Where Sergeant Saturn, Space-Pilots and Kiwis Meet is the letters to the editor of the magazine issue(s) and is uncredited, except for the first two which end with "The Editor".
Captain Future and the Space Emperor (over) "Captain Future, Winter 1940".
Calling Captain Future (over) "Captain Future, Spring 1940".