author
b. 1850
Best remembered for practical books on proofreading and English word formation, this late-19th-century language writer brought a printer’s eye and a teacher’s patience to the mechanics of clear writing.

by F. Horace (Francis Horace) Teall
Francis Horace Teall was an American writer born in 1850. He is known today mainly for works on language and publishing, including Proof-reading: A Series of Essays for Readers and Their Employers, and for Authors and Editors and The Compounding of English Words.
His surviving books suggest a strong interest in the craft behind good writing: spelling, usage, typography, and the careful habits that help text read cleanly and correctly. Proof-reading, published in 1898 by The Inland Printer Company, shows him writing for readers, authors, editors, and others involved in print.
Reliable biographical details beyond his birth year are limited in the sources I could confirm, so it is safest to remember him as a specialist in the practical side of English rather than attach a fuller life story without evidence.