I heard from Clarence J. Trahan that his short story “SOS in Paris” contains mentions of the Mars Club, the Butlers, and Aaron Bridgers. You can find the story at Black Short Stories. You can get a little preview of the story at that site. Clarence also told me he has a photo of the street address where the Mars Club used to be. I’d love to see that.
Here’s what Google Street view shows for the address, which is Six Impasse Robert Estienne.
UPDATE 6/25/12: The story SOS in Paris is no longer online.