The Neptune Club advertised its grand opening as May 27, 1972 (in the GPU News), and advertised that it would also be serving food. The first ads listed the address as 1102 E. Kane, changed in later advertising to 1100 E. Kane.

Neptune Club is believed to have been Chuck Cicerello's first gay bar. He later opened the Factory, which was to become the legendary Milwaukee dance/ disco bar, followed by Factory 2 and 3, and other bars in later years.

More information about this business is welcomed from anyone who can contribute it.