author
A German-American critic of the brewing industry, he wrote a sharp, reform-minded attack on political influence and corruption in the liquor trade. His surviving work offers a vivid glimpse of temperance-era debate in the early 1900s.

by Adolph Keitel
Adolph Keitel is known as the author of Government by the Brewers?, a public-domain work preserved by Project Gutenberg. The book presents a forceful criticism of the power brewers held in politics and public life, placing him among the outspoken voices in the temperance debates of the early twentieth century.
Reliable biographical information about him appears to be very scarce in the sources I could confirm. Based on the surviving book record, he was writing for a readership concerned with reform, civic life, and the influence of the alcohol industry.
Because so little verified personal information is readily available, his life is best understood through his writing itself: direct, argumentative, and closely tied to the social controversies of its time.