A convention held in the Tulsa, OK, area from 1977 and organized by the local club, STARbase Tulsa. It grew out of a Star Trek convention (it had originally been known as Star Trek Mini Con).
In 1991, the chairman announced, apparently unilaterally, that the 1992 OKon would be the last. STARbase Tulsa kept meeting for another year and then died. Some OKon committee members later created Conestoga.
For more information see A Short History of OKon (IA) by Tim Frayser.
||July 30-31, 1977
||C. J. Cherryh, R. A. Lafferty
||July 22-23, 1978
||Joe Haldeman, Lee Killough
||July 21-22, 1979
||Jack Williamson, Margaret Middleton
||July 19-20, 1980
||Alan Dean Foster, Shelby Bush III, Mary Kay Jackson
||Convention cancelled due to hotel shutting down.
||July 16-18, 1982
||Wilson "Bob" Tucker, Frank Kelly Freas, Polly Freas, Frederik Pohl, James P. Hogan
||July 15-17, 1983
||Larry Niven, Jerry Pournelle, Real Musgrave, Marty Burke
||July 20-22, 1984
||Stephen R. Donaldson, David Cherry, Victoria Wheeler, Buck Coulson, Juanita Coulson
||July 19-21, 1985
||James P. Hogan, Phil Foglio, Ken Moore, Wilson "Bob" Tucker
||Kelly Freas, Polly Freas, Carl Lundgren, Forrest J Ackerman, Julia Ecklar
||C. J. Cherryh, Wilson "Bob" Tucker, Muff Musgrave, Real Musgrave, Jan Howard Finder, Suzette Haden Elgin, Larry Niven, Elizabeth Ann Scarborough, Richard Pini
||Janet Morris, Chris Morris, Vincent DiFate, Leslie Fish
||Robert Bloch, David Mattingly, David Govaker, Technical Difficulties
||Hal Clement, Tom Kidd, Brad Sinor, Mark Simmons, Elizabeth Ann Scarborough
||July 26-28, 1991
||Jo Clayton, George Alec Effinger, Lucy Synk, Sally Childs-Helton, Barry Childs-Helton
||July 24-26, 1992
||Elizabeth Ann Scarborough, David Lee Anderson, K. D. Wentworth, Diana Gallagher
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