We just received an email from Lakeside Area Neighbors Association (LANA) and they are trying to get this block club up and running again. They have a Facebook page you can check out here. For those of you not on Facebook, you can contact LANA at email@example.com for more info.
Boundaries for this block club have historically been Lawrence to Eastwood, and Sheridan to Clarendon. Spread the word and get involved!
(aerial map via Google)