Anson MacDonald

pseudogravitational adj.	1942 ‘A. MacDonald’ Waldo in Astounding Science-Fiction Aug. 50/2 He felt the pull of the pseudo gravitational field, felt his legs grow heavy.
stasis field n.	1942 ‘A. MacDonald’ Beyond This Horizon in Astounding Science Fiction Apr. 31/1 Monroe-Alpha began to understand what they were talking about. It was the so-called Adirondack stasis field. It had been a three-day wonder when it was discovered, a generation earlier, in a remote part of the mountains from which it got its name.
waldo n.	1942 ‘A. MacDonald’ Waldo in Astounding Science-Fiction Aug. 16/2 Even the…humanoid gadgets known universally as ‘waldoes’…passed through several generations of development…in Waldo’s machine shop before he redesigned them for mass production. The first of them…had been designed to enable Waldo to operate a metal lathe.