Founder of "Just for Openers (JFO)," Donald A. Bull has also co-authored and published The Register of United States Breweries and American Breweries, Beer Trivia, The Ultimate Corkscrew Book, and Bull's Pocket Guide to Corkscrews. He resides in Wirtz, Virginia. Computer programmer for UNC Chapel Hill and current editor of the JFO newsletter and membership secretary for the Eastern Coast Breweriana Association (ECBA), John R. Stanley has collected bottle openers since 1977.

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