LoneStarCon 1, the 1985 North American Science Fiction Convention (NASFiC), held in Austin, Texas
In a three-way race, Austin (393 votes) easily bested Detroit, Michigan (132 votes) and Columbus, Ohio (69 votes) as well as a single write-in vote for Highmore, South Dakota.
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before=2nd North American Science Fiction Convention
NorthAmeriCon '79 in Louisville, KY, USA