For anyone interested, I talked to the most recent secretary of the American Brown Leghorn Club and he reported the club still exists but is in limbo at the moment. He said the website at
http://the-coop.org/leghorn/ablc1.html is very old but they haven't figured out how to take it down. He's planning on holding a meeting in November in Ohio, I'm assuming at the APA annual, and get the club back up and running. Last, he said something will be posted on the direction/status of the club, so I'm guessing it'll be posted on the ABLC Facebook page which seems to be the place where everyone is communicating.
I like the Facebook page a lot for real-time info but I'd still like to see the club back up and running. With a club you can have formal meetings, maintain breeder lists, and things generally stay organized. I hope they get back up to speed again because I would join.