SHERRY, John — Born in 1797, in Lancaster County, Pa. Served his apprenticeship and learned the trade of rifle-making in the Leman rifle shop, which he entered at the age of 17 and remained for 12 years. Established himself in 1830 in Beaver Township, Clarion Co., Pa., as a maker of early percussion Kentucky rifles. Inventor of the segmental rifle groove and one of the first to use gain twist rifling. John Sherry died in 1889.
AMERICAN GUN MAKERS by SATTERLEE & GLUCKMAN