adamosf begins the multi-post listing at Visions of Paradise, with rationale about the choice:
- post 1: 1900s (H G Wells); 1910s (Edgar Rice Burroughs, Abraham Merritt); 1920s (E E "doc" Smith, Murray Leinster); & 1930s (Stanley G Weinbaum, & John W Campbell, Jr).
PS: I'll link his later posts from above list - provided I remember to look them up:) Hopefully, he will link later ones from above posts - so no harm done even if I forget.
[via SF Signal]
Related: "best of" lists.