author
A late-19th-century popular writer whose books introduced general readers to places, public figures, and current affairs. The works linked to this name include lively volumes on Cuba, Hawaii, and Pope Leo XIII, all published around 1898–1899.

by A. D. (Arthur D.) Hall

by A. D. (Arthur D.) Hall
Very little biographical information about A. D. Hall could be confirmed from the sources I found, and the author is sometimes listed in catalogs as Arthur D. Hall. What is clear is that this name appears on a number of nonfiction books from the late 1890s.
Library records connect A. D. Hall with works such as Cuba: Its Past, Present, and Future, Hawaii, and Life of the Pope (Leo the Thirteenth). Those titles suggest a writer aiming at a broad audience, explaining world events, notable places, and major public figures at a moment when readers were eager for accessible background and commentary.
Because reliable biographical details are scarce, the books themselves give the best sense of the author: a concise, informative voice focused on subjects that felt timely and important to readers of the era.