author
A practical voice from the 19th-century textile world, this author wrote to help mill workers understand ring spinning clearly and usefully. The surviving record points to a hands-on expert more interested in solving production problems than showing off theory.

by Francis L. Lincoln
Very little biographical information about Francis L. Lincoln appears to survive in the sources I could confirm. What is clear is that he wrote Instruction book on ring spinning, published in Warren, Massachusetts, in 1885.
In the book's preface, he describes it as a guide shaped by years of study and observation in the spinning department. That fits the book itself, which focuses on the day-to-day realities of cotton mill work: handling drafts and twist, improving yarn quality, fixing common problems, and helping workers understand the machinery and process.
Even without many personal details, the work leaves a strong impression of a technically skilled instructor writing for people on the factory floor. For modern listeners, his book offers a direct window into the language, methods, and working knowledge of the late 19th-century textile industry.