Trivia question

[Les]

On Jessica's great Lindsey site (lindseybuckingham.net), she posted a trivia question a little bit ago that's got me generally curious.

Question: Which of the following clubs was Lindsey in during his junior year of high school?

A. Radio
B. Boys' Athletic Board
C. Boys' Block Society
D. Safety Council

Answer: C. Boys' Block Society

Does anyone happen to know what the Boys' Block Society would be? I'm thinking it's perhaps sports-related, but I've never heard of this before, so I'm just curious if anyone might know what this is? Thanks.