This rifle is noted as purchased by Dave Hammert about 1989 at farm sale outside of Casstown, Ohio. The famous Hawken brothers of St. Louis were part a larger family of gunmakers. Their uncle Nicholas Hawken and his sons John and Daniel Turney Hawken were gunmakers in Ohio. In "The Hawken Dynasty (Part 1): Pennsylvania, Maryland, Virginia, Ohio, and Missouri" by Nathan E. Bender, John is listed c. 1805-1846 and as working with his brother in Springfield c. 1835-1838 after their father's death, then Piqua in 1838, and then from 1842 on in Springfield. "They are best known for their full-stock percussion rifles..." The barrel has seven-groove rifling, "J Hawken" signed on top, and dovetailed blade and notch sights. The lock has some light engraving, full cock only, and is secured by a single cross screw. The rifle is equipped with single phase double set triggers and has brass furniture.