Donald Allen Wollheim was an American science fiction editor, publisher, writer, and fan. As an author, he published under his own name as well as under pseudonyms, including David Grinnell, Martin Pearson, and Darrell G. Raynor. A founding member of the Futurians, he was a leading influence on science fiction development and fandom in the 20th-century United States. Ursula K. Le Guin called Wollheim "the tough, reliable editor of Ace Books, in the Late Pulpalignean Era, 1966 and '67", which is when he published her first two novels in Ace Double editions.

Frederik George Pohl Jr. was an American science-fiction writer, editor, and fan, with a career spanning nearly 75 years—from his first published work, the 1937 poem "Elegy to a Dead Satellite: Luna", to the 2011 novel All the Lives He Led.