Olaf Stapeldon:  FIRST MEN TO STAR MAKER 1930- 37

• Lost and First Men: A Story of the Near and Far Future, 1930.
• Last Men In London, 1932.
• Star Maker, 1937.

E.E. "Doc" Smith LENSMEN 1934 1948
• Triplanetary 1934; rev 1948
• First Lensman, 1950
• Galactic Patrol, 1937 38.
• Gray Lensman, 1939 40.
• Second Stage Lensman, 1941 2.
• Children of the Lens, 1947 8.
• (The Vortex Blaster/ Masters of the Vortex) 1941 2; fix up 1960    takes place in same universe.

Robert Heinlein FUTURE HISTORY 1950 1967

The Man Who Sold the Moon (ss) 1950.

The Green Hills of Earth (ss) 1951.

Revolt in 2100 (SS) 1953.

Methusula's Children 1958.

Orphans of the Sky (1941; fix-up 1963) .

The Past Through Tomorrow * (collection of all FH short stories) 1967.

Issac Asimov EMPIRE 1950 52, FOUNDATION, and Robots 1952 1983
Foundation Universe

• Pebble in the Sky 1950.
• The Stars Like Dust, 1951.
• The Currents of Space, 1952.
• The End of Eternity, 1955
Foundation
• Foundation  1952.
• Foundation and Empire 1952.
• Second Foundation 1953.
• Foundation's Edge, 1983.
• Foundation and Earth, 1986
• Prelude to the Foundation (1989)
• Forward the Foundation, 1993
• Gregory Benford, Foundation’s Fear
• Greg Bear, Foundation and Chaos
• David Brin, Foundation’s Triumph, 1999
ROBOTS
• I, Robot (ss), 1950
• Caves of Steel, 1954
• The Naked Sun, 1957
• The Rest of the Rbots (ss), 1964
• Robots of Dawn, 1983
• Robots and Empire, 1985

James ' Blish CITIES IN FLIGHT 1955-62

• Earthman Come Home * 1955.
• They Shall Have Stars 1956.
• The Triumph of Time 1959.
• A Life for the Stars 1962.

Larry Niven KNOWN SPACE 1966 1980

• World of Ptavs 1966.
• A Gift from Earth, 1968.
• Neutron Star (SS) 1968.
• The Shape of Space (SS) 1969.
• Ringworld * 1970.
• Protector, 1973.
• Tales of Known Space (SS) 1975.
• The Long ARM of Gil Hamilton (SS)
• The Ringworld Engineers * 1980.