Ross Rocklynne — Copyright 1941 by Street & Smith Publications, Inc.; renewed © 1969. Reprinted by permission of the author’s agent, Forrest J. Ackerman, 2495 Glendower Ave., Hollywood, CA 90027.
A. E. van Vogt — Copyright 1942 by Street & Smith Publications, Inc.; renewed © 1970 by A. E. van Vogt. Reprinted by permission of Richard Curtis Associates, Inc.
Lester del Rey — Copyright 1942 by Street & Smith Publications, Inc.; renewed © 1970 by Lester del Rey. Reprinted by permission of the Scott Meredith Literary Agency, Inc., 845 Third Avenue, New York, NY 10022.
Fredric Brown — Copyright 1943 by Standard Magazines, Inc.; renewed © 1971 by Fredric Brown. Reprinted by permission of Roberta Pryor Inc.
Theodore Sturgeon — Copyright 1944 by Street & Smith Publications, Inc.; renewed © 1972 by Theodore Sturgeon. Reprinted by permission of Kirby McCauley, Ltd.
C. L. Moore — Copyright 1944 by Street & Smith Publications, Inc.; renewed © 1972 by Catherine Reggie. Reprinted by permission of Don Congdon Associates, Inc.
Isaac Asimov — Copyright 1944 by Street & Smith Publications, Inc.; renewed © 1972 by Isaac Asimov. Reprinted by permission of the author.
A. Bertram Chandler — Copyright 1945 by Street & Smith Publications, Inc.; renewed © 1973 by A. Bertram Chandler. Reprinted by permission of the agents for the author’s Estate, the Scott Meredith Literary Agency, Inc., 845 Third Avenue, New York, NY 10022.
T. L. Sherred — Copyright 1947, renewed © 1975 by T. L. Sherred. Reprinted by permission of the author’s Estate and the author’s agent, Virginia Kidd.
Jack Williamson — Copyright 1947 by Street & Smith Publications, Inc.; renewed © 1975 by Jack Williamson. Reprinted by permission of the Spectrum Literary Agency.