O'Donnell, Kevin, Jr.,
--The Tripper, October, 1975.
--An Appetite for Power, March, 1997.
Offutt, Andrew J.,
--Gone with the Gods, October, 1974. (novelette)
Olin, Richard,
--All Day Wednesday, March, 1963.
--The Mischief Maker, October, 1965.
Olsen, Robert,
--Paleontology: An Experimental Science, August, 1974.
Oltion, Jerry, (1957- )
--Frame of Reference, January, 1984. (novelette)
--The Getaway Special, April, 1985.
--The BASIC Universe, August, 1985.
--Déjà View, July, 1986.
--In the Creation Science Laboratory, September, 1987.
--What's a Nice Girl Like You ..., October, 1987. (short short)
--Big Two-Sided River, February, 1989.
--Time Out, May, 1990. (novelette)
--Schödinger's Lifeboat, August, 1990. (short short)
--Peace on Earth, December, 1990. (short short)
--Red Alert, October, 1991.
--The Clone in the Moon, August, 1992. (novelette)
--Hit and Run, April, 1993.
--Course Changes, September, 1993.
--Dedication, October, 1993.
--The Firefly Farce, May, 1994.
--Fermat's Lost Theorem Mid-December, 1994. * (novelette)
--Schrodinger's Kiln, February, 1995.
--Come Together, May, 1995. (short short)
--Fait Accompli, July, 1995. (novelette)
--Away in a Manager, Mid-December, 1995. (short short)
--Unfinished Business, October, 1996. Astral Astronauts
--The Spectral Stardrive, November, 1996. Astral Astronauts
--Holiday Spirits, January, 1997. Astral Astronauts
--The Space Program, July-August, 1997.
--Cease and Deceased, October, 1997. Astral Astronauts
Oltion, Jerry, (continued)
--What's It Like? February, 1998.
--Why Didn't You Think of That Before We Left? March, 1998. Astral Astronauts
--Artifacts, October, 1998.
--Kissing Cousins, November, 1998. Astral Astronauts
--Gems in the Rough, January, 1999.
--The Menace from Earth, October, 1999. (novelette) Astral Astronauts
--A Star Is Born, February, 2000.
--It's the Thought That Counts, December, 2000.
--Chum, April, 2002.
--Cabin Fever, May, 2002. Astral Astronauts
--Ships in the Night, June, 2002. Astral Astronauts
--Renewable Resources, September, 2002.
--Witness, December, 2002.
--The Haseg, February, 2003. (short short)
--also see Castro, Adam-Troy, and Jerry Oltion
--also see Hoffman, Nina Kiriki, and Jerry Oltion
--also see Oltion, Jerry, and Lee Goodloe
--also see Oltion, Jerry, and Kevin Hardisty
Oltion, Jerry, and Lee Goodloe,
--Down the Colorado! September, 1989. (novella)
--The Baseline Project, January, 1990. (novelette)
--Contact, November, 1991. (novella)
--Waterworld, March, 1994. (novelette)
Oltion, Jerry, and Kevin Hardisty,
--All Your Dreams Come True, June, 1985.
Oltion, Kathy,
--While You Wait, September, 1998.
--Graveyard Shift, October, 2000.
--The Cat and the Pendulum, November, 2002. (short short)