Robert Donald Locke

extra-terrestial adj.	1954 R. D. Locke Final Curtain in Nebula Science Fiction Oct. 60 Mass hysteria caused the people to believe they saw space vessels in the sky—flying saucers. Why were they so willing to believe? Because the literature of the day had made them grow accustomed to the possibility of extra-terrestial life.
subetheric adj.	1953 R. D. Locke Dark Nuptial in Thrilling Wonder Stories Feb. 65/1 The information on the matrix is transmitted over tight sub-etheric waves to a receiving station at a velocity equal to that of gravitation. Which has thus far proved to be virtually instantaneous.