The provided source text does not contain biographical information for the author P. B. M. (Philip Bertram Murray) Allan. Instead, the reference material focuses entirely on the history of the P. Ballantine & Sons Brewing Company, an American beverage brand founded in 1845 in Newark, New Jersey. During the mid-20th century, the brewery reached its peak market position, becoming the third-largest brewing company in the United States, trailing only its competitors Anheuser-Busch and Schlitz. The brand is currently owned and operated by the Pabst Brewing Company, and it remains historically recognized for its flagship product, Ballantine XXX Ale. Because the provided text is limited to this corporate history, there is no available data regarding P. B. M. Allan's life, nationality, literary era, or published works. Consequently, a standard author biography cannot be compiled from the provided document, and all author-specific fields remain empty to prevent speculation beyond the source text.
