Wikipedia
Houstoncon was an annual multi-genre fan convention which was held between 1967 and 1982 in Houston, Texas. The founders of Houstoncon were Roy Bonario and Mark Schooley; Houston area entrepreneur Ed Blair, Jr. was also a key member of the organizing committee.
Most Houstoncons took place over three days in June, from Friday to Sunday. The convention featured a large range of pop culture elements, primarily comic books but also television serials, science fiction/fantasy (particularly Star Trek), film/television, animation, toys, and horror. Along with panels, seminars, and workshops with comic book professionals, the Houstoncon often featured screenings of old television serials, and such evening events as a costume contest. The convention featured a large floorspace for exhibitors, including comic book dealers and collectibles merchants. The show included an autograph area, as well as an Artists' Alley where comics artists signed autographs and sold or did free sketches. (Despite the name, Artists' Alley could include writers and even glamour models.)