It's increasingly apparent that Bernard Madoff's investment services weren't as exclusive as once thought.

An eclectic list purporting to name thousands of people who lost money in Mr. Madoff's alleged $50 billion Ponzi scheme -- complete with their street addresses -- includes housewives and retirees, a plumbers union and a high school. The list, released as part of his firm's bankruptcy-court proceedings, is providing fodder for gawkers who are already poring through it to look for friends, business associates and prominent...