Marcon III was held March 30-31, 1968 at the Holiday Inn East in Columbus, OH and was the first sponsored by the Olentangy SF Society. The GoH was Fred Pohl. There were 110 attendees and an evening banquet at the Coventry Inn.
|Marcon II||Marcon||Marcon IV|
Also involved: - Carnegie Mellon Science Fiction Society - Convention timeline - Frederik Pohl - Marcon Iii - Marcon-3 - Marcon-iii
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