Everett B. Cole

cycle n.	1955 E. B. Cole Millennium in Astounding Science Fiction May 8/1 An inspection team was supposed to visit once a cycle for about fifty cycles, then once each five cycles after that. They would have taken care of maintenance. This operation was set up quite a while ago, you know.
planet v.	1954 E. B. Cole Exile in Astounding Science Fiction Jan. 31/1 He had a couple of observer groups planeted, and one more check should complete his field work.
space travel n.	1954 E. B. Cole Exile in Astounding Science Fiction Jan. 32/2 He fanned out his detectors to maximum sensitivity, but was unable to discover any trace of space travel.