A series of conventions held in Danbury, CT and run by Kennedy Poyser and Victoria Poyser. (The name was from Danbury's importance in the hat trade in the 1800s and from the phrase "Mad as a hatter.")

Hatcon I was a relaxacon held New Year's Eve 1983 through the early hours of New Year's Day 1984 at the home of Kennedy Poyser and Victoria Poyser in Danbury, CT. The program was gossip, the banquet lasted eight hours and art show sales were $3600.

This is a convention page. Please extend it by adding information about the convention, including dates, GoHs, convention chairman, location, sponsoring organization, external links to convention pages, awards given, the program, notable events, anecdotes, pictures, scans of publications, pictures of T-shirts, con reports, etc.