Short Story Flight of the Dawn Star by Robert Moore Williams Astounding Science-Fiction, March 1938 Undetermined Undetermined Time Travel > More Details . . .
Novelette The Tides of Time by Robert Moore Williams Thrilling Wonder Stories, April 1940 Undetermined Undetermined Time Travel > More Details . . .
Short Story The Incredible Slingshot Bombs by Robert Moore Williams Amazing Stories, May 1942 Undetermined Undetermined Time Travel > More Details . . .