Roger T. (Roger Thompson) Finlay

Roger T. Finlay, usually listed as Roger Thompson Finlay, was an American author born in 1860. He is now chiefly remembered for the Wonder Island Boys books, a sequence of juvenile adventure novels published in the 1910s and widely preserved through library catalogs and Project Gutenberg editions.

Reference sources agree on the books more clearly than on the man. The Encyclopedia of Science Fiction notes that he is known today mainly for this series and even suggests the name may have been a pseudonym. That uncertainty means only a few personal details can be stated confidently, but his surviving work points to a writer interested in exploration stories, island settings, and practical problem-solving.

His novels follow young castaway heroes through encounters with unfamiliar landscapes, hidden places, and dangerous rivals, blending adventure with a strong didactic streak typical of popular fiction for younger readers of the period. Because so little biographical material is easy to confirm, Finlay is one of those authors whose books have lasted more visibly than the record of his life.